1998808

1998808 is a natural number that follows 1998807 and precedes 1998809. It is even and composite, with a prime factorization of 1998808 = 2^3 × 7^2 × 5099. This decomposition shows that its smallest prime factors are 2 and 7, and that 5099 is itself prime. Consequently, the number has 24 positive divisors.

In decimal notation its digit sum is 1+9+9+8+8+0+8 = 43, so it is not divisible by 3 or 9. The number is divisible by 8 and by 49, reflecting the 2^3 and 7^2 factors. In hexadecimal it is 1E7FD8.

The sum of its positive divisors, sigma(n), equals 4,360,500, making the number abundant (sigma(n) > n). The abundancy index is approximately 2.18. The factorization 2^3 · 7^2 · 5099 shows it is not a square or a cube, and its squarefree kernel is 2 · 7 · 5099 = 71,386. This combination of a small squareful part (2^3 and 7^2) with a larger prime factor is characteristic of many composite integers and is of interest in divisor-function studies and factorization analysis.