18934684 has 12 divisors (see below), whose sum is σ = 33397504. Its totient is φ = 9392544.

The previous prime is 18934679. The next prime is 18934733. The reversal of 18934684 is 48643981.

It is a self number, because there is not a number n which added to its sum of digits gives 18934684.

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, 18129 + ... + 19144.

Almost surely, 2^18934684 is an apocalyptic number.

It is an amenable number.

18934684 is a deficient number, since it is larger than the sum of its proper divisors (14462820).

18934684 is a wasteful number, since it uses less digits than its factorization.

18934684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37404 (or 37402 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 18934684 is about 4351.4002344073. The cubic root of 18934684 is about 266.5340430799.

The spelling of 18934684 in words is "eighteen million, nine hundred thirty-four thousand, six hundred eighty-four".