23320928 has 24 divisors (see below), whose sum is σ = 47396160. Its totient is φ = 11283840.

The previous prime is 23320861. The next prime is 23320933. The reversal of 23320928 is 82902332.

It is a self number, because there is not a number n which added to its sum of digits gives 23320928.

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, 10763 + ... + 12746.

It is an arithmetic number, because the mean of its divisors is an integer number (1974840).

Almost surely, 2^23320928 is an apocalyptic number.

It is an amenable number.

23320928 is an abundant number, since it is smaller than the sum of its proper divisors (24075232).

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

23320928 is a wasteful number, since it uses less digits than its factorization.

23320928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23550 (or 23542 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 23320928 is about 4829.1746706865. The cubic root of 23320928 is about 285.7033127214.

The spelling of 23320928 in words is "twenty-three million, three hundred twenty thousand, nine hundred twenty-eight".