23131472 has 40 divisors (see below), whose sum is σ = 55163136. Its totient is φ = 9150336.

The previous prime is 23131469. The next prime is 23131477. The reversal of 23131472 is 27413132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131477) 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 7 ways as a sum of consecutive naturals, for example, 6488 + ... + 9399.

Almost surely, 2^23131472 is an apocalyptic number.

It is an amenable number.

23131472 is an abundant number, since it is smaller than the sum of its proper divisors (32031664).

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

23131472 is a wasteful number, since it uses less digits than its factorization.

23131472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15915 (or 15909 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 23131472 is about 4809.5188948584. The cubic root of 23131472 is about 284.9275367224.

The spelling of 23131472 in words is "twenty-three million, one hundred thirty-one thousand, four hundred seventy-two".