18490976 has 24 divisors (see below), whose sum is σ = 41605200. Its totient is φ = 7924608.

The previous prime is 18490961. The next prime is 18490987. The reversal of 18490976 is 67909481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41051 + ... + 41498.

It is an arithmetic number, because the mean of its divisors is an integer number (1733550).

Almost surely, 2^18490976 is an apocalyptic number.

18490976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18490976 is an abundant number, since it is smaller than the sum of its proper divisors (23114224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18490976 is an equidigital number, since it uses as much as digits as its factorization.

18490976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82566 (or 82558 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 18490976 is about 4300.1134868745. The cubic root of 18490976 is about 264.4356138462.

The spelling of 18490976 in words is "eighteen million, four hundred ninety thousand, nine hundred seventy-six".