18713996 has 24 divisors (see below), whose sum is σ = 39056640. Its totient is φ = 7671312.

The previous prime is 18713963. The next prime is 18714011. The reversal of 18713996 is 69931781.

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, 13886 + ... + 15173.

It is an arithmetic number, because the mean of its divisors is an integer number (1627360).

Almost surely, 2^18713996 is an apocalyptic number.

It is an amenable number.

18713996 is an abundant number, since it is smaller than the sum of its proper divisors (20342644).

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

18713996 is a wasteful number, since it uses less digits than its factorization.

18713996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29093 (or 29091 counting only the distinct ones).

The product of its digits is 81648, while the sum is 44.

The square root of 18713996 is about 4325.9676374194. The cubic root of 18713996 is about 265.4944890762.

The spelling of 18713996 in words is "eighteen million, seven hundred thirteen thousand, nine hundred ninety-six".