18864316 has 12 divisors (see below), whose sum is σ = 33216232. Its totient is φ = 9373968.

The previous prime is 18864281. The next prime is 18864341. The reversal of 18864316 is 61346881.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 13815 + ... + 15118.

Almost surely, 2^18864316 is an apocalyptic number.

It is an amenable number.

18864316 is a deficient number, since it is larger than the sum of its proper divisors (14351916).

18864316 is a wasteful number, since it uses less digits than its factorization.

18864316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100 (or 29098 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 18864316 is about 4343.3070349677. The cubic root of 18864316 is about 266.2034548743.

The spelling of 18864316 in words is "eighteen million, eight hundred sixty-four thousand, three hundred sixteen".