23158472 has 32 divisors (see below), whose sum is σ = 45257400. Its totient is φ = 11096064.

The previous prime is 23158469. The next prime is 23158489. The reversal of 23158472 is 27485132.

It can be written as a sum of positive squares in 4 ways, for example, as 22146436 + 1012036 = 4706^2 + 1006^2 .

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, 39848 + ... + 40424.

Almost surely, 2^23158472 is an apocalyptic number.

It is an amenable number.

23158472 is a deficient number, since it is larger than the sum of its proper divisors (22098928).

23158472 is a wasteful number, since it uses less digits than its factorization.

23158472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 781 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 23158472 is about 4812.3250098056. The cubic root of 23158472 is about 285.0383533077.

The spelling of 23158472 in words is "twenty-three million, one hundred fifty-eight thousand, four hundred seventy-two".