23320856 has 16 divisors (see below), whose sum is σ = 47090400. Its totient is φ = 10763424.

The previous prime is 23320831. The next prime is 23320859. The reversal of 23320856 is 65802332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320859) 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, 112016 + ... + 112223.

It is an arithmetic number, because the mean of its divisors is an integer number (2943150).

Almost surely, 2^23320856 is an apocalyptic number.

23320856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

23320856 is an abundant number, since it is smaller than the sum of its proper divisors (23769544).

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

23320856 is a wasteful number, since it uses less digits than its factorization.

23320856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224258 (or 224254 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 23320856 is about 4829.1672159908. The cubic root of 23320856 is about 285.7030186986.

The spelling of 23320856 in words is "twenty-three million, three hundred twenty thousand, eight hundred fifty-six".