23256528 has 40 divisors (see below), whose sum is σ = 60266976. Its totient is φ = 7728000.

The previous prime is 23256523. The next prime is 23256599. The reversal of 23256528 is 82565232.

It is a super-2 number, since 2×23256528² = 1081732189229568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23256523) 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 7 ways as a sum of consecutive naturals, for example, 21603 + ... + 22653.

Almost surely, 2^23256528 is an apocalyptic number.

It is an amenable number.

23256528 is an abundant number, since it is smaller than the sum of its proper divisors (37010448).

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

23256528 is a wasteful number, since it uses less digits than its factorization.

23256528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523 (or 1517 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 23256528 is about 4822.5022550539. The cubic root of 23256528 is about 285.4400834062.

The spelling of 23256528 in words is "twenty-three million, two hundred fifty-six thousand, five hundred twenty-eight".