18713944 has 16 divisors (see below), whose sum is σ = 35905320. Its totient is φ = 9139200.

The previous prime is 18713921. The next prime is 18713951. The reversal of 18713944 is 44931781.

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, 26857 + ... + 27544.

Almost surely, 2^18713944 is an apocalyptic number.

It is an amenable number.

18713944 is a deficient number, since it is larger than the sum of its proper divisors (17191376).

18713944 is a wasteful number, since it uses less digits than its factorization.

18713944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54450 (or 54446 counting only the distinct ones).

The product of its digits is 24192, while the sum is 37.

The square root of 18713944 is about 4325.9616271992. The cubic root of 18713944 is about 265.4942431689.

The spelling of 18713944 in words is "eighteen million, seven hundred thirteen thousand, nine hundred forty-four".