726

726 is the natural number that comes after 725 and before 727. It is an even, composite number with prime factorization 2 × 3 × 11^2. In decimal notation its digits sum to 15, so it is divisible by 3. It is not a prime number and, according to the standard divisor sum, is an abundant number (the sum of its proper divisors is greater than the number itself).

In Roman numerals, 726 is written as DCCXXVI.

726 Nipponia is a main-belt asteroid.

In 726 CE, the Byzantine Empire under Emperor Leo III began iconoclastic policies that discouraged the veneration of religious images, a development later known as the Byzantine Iconoclasm.