23188972 has 6 divisors (see below), whose sum is σ = 40580708. Its totient is φ = 11594484.

The previous prime is 23188943. The next prime is 23188981. The reversal of 23188972 is 27988132.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2898618 + ... + 2898625.

Almost surely, 2^23188972 is an apocalyptic number.

It is an amenable number.

23188972 is a deficient number, since it is larger than the sum of its proper divisors (17391736).

23188972 is a wasteful number, since it uses less digits than its factorization.

23188972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5797247 (or 5797245 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 23188972 is about 4815.4929135032. The cubic root of 23188972 is about 285.1634314506.

The spelling of 23188972 in words is "twenty-three million, one hundred eighty-eight thousand, nine hundred seventy-two".