23057928 has 48 divisors (see below), whose sum is σ = 62719020. Its totient is φ = 7652736.

The previous prime is 23057927. The next prime is 23057941. The reversal of 23057928 is 82975032.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15539364 + 7518564 = 3942^2 + 2742^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23057892 and 23057901.

It is not an unprimeable number, because it can be changed into a prime (23057921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20550 + ... + 21642.

Almost surely, 2^23057928 is an apocalyptic number.

It is an amenable number.

23057928 is an abundant number, since it is smaller than the sum of its proper divisors (39661092).

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

23057928 is a wasteful number, since it uses less digits than its factorization.

23057928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398 (or 1391 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 23057928 is about 4801.8671368542. The cubic root of 23057928 is about 284.6252507602.

The spelling of 23057928 in words is "twenty-three million, fifty-seven thousand, nine hundred twenty-eight".