18988012 has 12 divisors (see below), whose sum is σ = 33270160. Its totient is φ = 9482256.

The previous prime is 18988007. The next prime is 18988037. The reversal of 18988012 is 21088981.

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, 1414 + ... + 6322.

Almost surely, 2^18988012 is an apocalyptic number.

It is an amenable number.

18988012 is a deficient number, since it is larger than the sum of its proper divisors (14282148).

18988012 is a wasteful number, since it uses less digits than its factorization.

18988012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5880 (or 5878 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 37.

The square root of 18988012 is about 4357.5236086566. The cubic root of 18988012 is about 266.7840323650.

The spelling of 18988012 in words is "eighteen million, nine hundred eighty-eight thousand, twelve".