18804272 has 10 divisors (see below), whose sum is σ = 36433308. Its totient is φ = 9402128.

The previous prime is 18804229. The next prime is 18804283. The reversal of 18804272 is 27240881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 587618 + ... + 587649.

Almost surely, 2^18804272 is an apocalyptic number.

It is an amenable number.

18804272 is a deficient number, since it is larger than the sum of its proper divisors (17629036).

18804272 is a wasteful number, since it uses less digits than its factorization.

18804272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175275 (or 1175269 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 18804272 is about 4336.3892814184. The cubic root of 18804272 is about 265.9207180761.

The spelling of 18804272 in words is "eighteen million, eight hundred four thousand, two hundred seventy-two".