18988204 has 12 divisors (see below), whose sum is σ = 33856704. Its totient is φ = 9314864.

The previous prime is 18988199. The next prime is 18988217. The reversal of 18988204 is 40288981.

It is a super-2 number, since 2×18988204² = 721103782291232, which contains 22 as substring.

It is a pancake number, because a pancake can be divided into 18988204 parts by 6162 straight cuts.

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, 44572 + ... + 44995.

It is an arithmetic number, because the mean of its divisors is an integer number (2821392).

Almost surely, 2^18988204 is an apocalyptic number.

It is an amenable number.

18988204 is a deficient number, since it is larger than the sum of its proper divisors (14868500).

18988204 is a wasteful number, since it uses less digits than its factorization.

18988204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89624 (or 89622 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 18988204 is about 4357.5456394627. The cubic root of 18988204 is about 266.7849315703.

The spelling of 18988204 in words is "eighteen million, nine hundred eighty-eight thousand, two hundred four".