23556320 has 24 divisors (see below), whose sum is σ = 55652184. Its totient is φ = 9422464.

The previous prime is 23556307. The next prime is 23556343. The reversal of 23556320 is 2365532.

It is a self number, because there is not a number n which added to its sum of digits gives 23556320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73454 + ... + 73773.

It is an arithmetic number, because the mean of its divisors is an integer number (2318841).

Almost surely, 2^23556320 is an apocalyptic number.

23556320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23556320 is an abundant number, since it is smaller than the sum of its proper divisors (32095864).

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

23556320 is a wasteful number, since it uses less digits than its factorization.

23556320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147242 (or 147234 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 23556320 is about 4853.4853456047. The cubic root of 23556320 is about 286.6613543875.

The spelling of 23556320 in words is "twenty-three million, five hundred fifty-six thousand, three hundred twenty".