18652972 has 12 divisors (see below), whose sum is σ = 35153776. Its totient is φ = 8609040.

The previous prime is 18652969. The next prime is 18652973. The reversal of 18652972 is 27925681.

It is not an unprimeable number, because it can be changed into a prime (18652973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179304 + ... + 179407.

Almost surely, 2^18652972 is an apocalyptic number.

It is an amenable number.

18652972 is a deficient number, since it is larger than the sum of its proper divisors (16500804).

18652972 is a wasteful number, since it uses less digits than its factorization.

18652972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358728 (or 358726 counting only the distinct ones).

The product of its digits is 60480, while the sum is 40.

The square root of 18652972 is about 4318.9086584460. The cubic root of 18652972 is about 265.2055933914.

The spelling of 18652972 in words is "eighteen million, six hundred fifty-two thousand, nine hundred seventy-two".