18934904 has 16 divisors (see below), whose sum is σ = 35633520. Its totient is φ = 9432640.

The previous prime is 18934897. The next prime is 18934913. The reversal of 18934904 is 40943981.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1964 + ... + 6459.

It is an arithmetic number, because the mean of its divisors is an integer number (2227095).

Almost surely, 2^18934904 is an apocalyptic number.

It is an amenable number.

18934904 is a deficient number, since it is larger than the sum of its proper divisors (16698616).

18934904 is a wasteful number, since it uses less digits than its factorization.

18934904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710 (or 8706 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 18934904 is about 4351.4255135530. The cubic root of 18934904 is about 266.5350753524.

The spelling of 18934904 in words is "eighteen million, nine hundred thirty-four thousand, nine hundred four".