18469472 has 36 divisors (see below), whose sum is σ = 42301980. Its totient is φ = 7914816.

The previous prime is 18469471. The next prime is 18469499. The reversal of 18469472 is 27496481.

It is a super-2 number, since 2×18469472² = 682242791917568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18469471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4322 + ... + 7457.

It is an arithmetic number, because the mean of its divisors is an integer number (1175055).

Almost surely, 2^18469472 is an apocalyptic number.

It is an amenable number.

18469472 is an abundant number, since it is smaller than the sum of its proper divisors (23832508).

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

18469472 is a wasteful number, since it uses less digits than its factorization.

18469472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11803 (or 11788 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The square root of 18469472 is about 4297.6123603694. The cubic root of 18469472 is about 264.3330660016. Note that the first 3 decimals are identical.

The spelling of 18469472 in words is "eighteen million, four hundred sixty-nine thousand, four hundred seventy-two".