19478

19478 is a number that falls between 19477 and 19479 in the sequence of natural numbers. It is an even number, as it is divisible by 2 without leaving a remainder. In base 10, it is written as "nineteen thousand four hundred seventy-eight." In Roman numerals, it is represented as "XIXMMMCDLXXVIII."

The number 19478 is not a perfect square or a perfect cube, as its square root and cube root are not integers. It is also not a prime number, as it has factors other than 1 and itself. The prime factorization of 19478 is 2 x 19 x 511.

In mathematics, 19478 is a composite number, meaning it has more factors than just 1 and itself. It is also an abundant number, as the sum of its proper divisors (1, 2, 19, 38, 511, 1022, 9739) is greater than the number itself.

In the context of the International Standard Book Number (ISBN), 19478 is a valid group identifier for books published in the United States. The ISBN system is used to uniquely identify books and is composed of a group identifier, a publisher identifier, a title identifier, and a check digit.

In popular culture, 19478 is the title of a song by the American rock band The Cars, released in 1978. The song is a tribute to the band's hometown of Boston and features a memorable guitar riff.