23502720 has 64 divisors (see below), whose sum is σ = 74921040. Its totient is φ = 6266880.

The previous prime is 23502701. The next prime is 23502727. The reversal of 23502720 is 2720532.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23502727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4201 + ... + 8040.

Almost surely, 2^23502720 is an apocalyptic number.

23502720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23502720 is an abundant number, since it is smaller than the sum of its proper divisors (51418320).

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

23502720 is a wasteful number, since it uses less digits than its factorization.

23502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263 (or 12251 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 23502720 is about 4847.9603958778. The cubic root of 23502720 is about 286.4437663939.

The spelling of 23502720 in words is "twenty-three million, five hundred two thousand, seven hundred twenty".