23157472 has 24 divisors (see below), whose sum is σ = 49099176. Its totient is φ = 10687872.

The previous prime is 23157467. The next prime is 23157479. The reversal of 23157472 is 27475132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23157479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27418 + ... + 28249.

It is an arithmetic number, because the mean of its divisors is an integer number (2045799).

Almost surely, 2^23157472 is an apocalyptic number.

It is an amenable number.

23157472 is an abundant number, since it is smaller than the sum of its proper divisors (25941704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23157472 is a wasteful number, since it uses less digits than its factorization.

23157472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55690 (or 55682 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 23157472 is about 4812.2211088020. The cubic root of 23157472 is about 285.0342505262.

The spelling of 23157472 in words is "twenty-three million, one hundred fifty-seven thousand, four hundred seventy-two".