23259520 has 32 divisors (see below), whose sum is σ = 55606320. Its totient is φ = 9303552.

The previous prime is 23259499. The next prime is 23259521. The reversal of 23259520 is 2595232.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23259521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17532 + ... + 18811.

Almost surely, 2^23259520 is an apocalyptic number.

23259520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23259520 is an abundant number, since it is smaller than the sum of its proper divisors (32346800).

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

23259520 is an equidigital number, since it uses as much as digits as its factorization.

23259520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36362 (or 36350 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 23259520 is about 4822.8124574775. The cubic root of 23259520 is about 285.4523236986.

The spelling of 23259520 in words is "twenty-three million, two hundred fifty-nine thousand, five hundred twenty".