18494976 has 40 divisors (see below), whose sum is σ = 49275864. Its totient is φ = 6164480.

The previous prime is 18494909. The next prime is 18494981. The reversal of 18494976 is 67949481.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 4485 + ... + 7556.

Almost surely, 2^18494976 is an apocalyptic number.

18494976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18494976 is an abundant number, since it is smaller than the sum of its proper divisors (30780888).

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

18494976 is an equidigital number, since it uses as much as digits as its factorization.

18494976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12062 (or 12046 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 18494976 is about 4300.5785657281. The cubic root of 18494976 is about 264.4546801950.

The spelling of 18494976 in words is "eighteen million, four hundred ninety-four thousand, nine hundred seventy-six".