18790868 has 12 divisors (see below), whose sum is σ = 33280800. Its totient is φ = 9282072.

The previous prime is 18790853. The next prime is 18790873. The reversal of 18790868 is 86809781.

It is a hoax number, since the sum of its digits (47) 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, 27968 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (2773400).

Almost surely, 2^18790868 is an apocalyptic number.

It is an amenable number.

18790868 is a deficient number, since it is larger than the sum of its proper divisors (14489932).

18790868 is a wasteful number, since it uses less digits than its factorization.

18790868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56686 (or 56684 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 18790868 is about 4334.8434804500. The cubic root of 18790868 is about 265.8575188101.

The spelling of 18790868 in words is "eighteen million, seven hundred ninety thousand, eight hundred sixty-eight".