18972752 has 10 divisors (see below), whose sum is σ = 36759738. Its totient is φ = 9486368.

The previous prime is 18972727. The next prime is 18972797. The reversal of 18972752 is 25727981.

It can be written as a sum of positive squares in only one way, i.e., 17272336 + 1700416 = 4156^2 + 1304^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 592883 + ... + 592914.

Almost surely, 2^18972752 is an apocalyptic number.

It is an amenable number.

18972752 is a deficient number, since it is larger than the sum of its proper divisors (17786986).

18972752 is a wasteful number, since it uses less digits than its factorization.

18972752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185805 (or 1185799 counting only the distinct ones).

The product of its digits is 70560, while the sum is 41.

The square root of 18972752 is about 4355.7722621827. The cubic root of 18972752 is about 266.7125448843.

The spelling of 18972752 in words is "eighteen million, nine hundred seventy-two thousand, seven hundred fifty-two".