23157872 has 20 divisors (see below), whose sum is σ = 46819920. Its totient is φ = 11075328.

The previous prime is 23157853. The next prime is 23157943. The reversal of 23157872 is 27875132.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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, 31097 + ... + 31832.

It is an arithmetic number, because the mean of its divisors is an integer number (2340996).

Almost surely, 2^23157872 is an apocalyptic number.

It is an amenable number.

23157872 is an abundant number, since it is smaller than the sum of its proper divisors (23662048).

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

23157872 is a wasteful number, since it uses less digits than its factorization.

23157872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62960 (or 62954 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 23157872 is about 4812.2626694726. The cubic root of 23157872 is about 285.0358916530.

The spelling of 23157872 in words is "twenty-three million, one hundred fifty-seven thousand, eight hundred seventy-two".