18974364 has 24 divisors (see below), whose sum is σ = 44732688. Its totient is φ = 6259200.

The previous prime is 18974357. The next prime is 18974383. The reversal of 18974364 is 46347981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6987 + ... + 9314.

It is an arithmetic number, because the mean of its divisors is an integer number (1863862).

Almost surely, 2^18974364 is an apocalyptic number.

It is an amenable number.

18974364 is an abundant number, since it is smaller than the sum of its proper divisors (25758324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18974364 is a wasteful number, since it uses less digits than its factorization.

18974364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16405 (or 16403 counting only the distinct ones).

The product of its digits is 145152, while the sum is 42.

The square root of 18974364 is about 4355.9573000662. The cubic root of 18974364 is about 266.7200983210.

The spelling of 18974364 in words is "eighteen million, nine hundred seventy-four thousand, three hundred sixty-four".