23304816 has 30 divisors (see below), whose sum is σ = 65221520. Its totient is φ = 7768224.

The previous prime is 23304803. The next prime is 23304817. The reversal of 23304816 is 61840332.

It is a happy number.

It is a super-2 number, since 2×23304816² = 1086228897587712, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23304816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23304817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80776 + ... + 81063.

Almost surely, 2^23304816 is an apocalyptic number.

It is an amenable number.

23304816 is an abundant number, since it is smaller than the sum of its proper divisors (41916704).

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

23304816 is a wasteful number, since it uses less digits than its factorization.

23304816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161853 (or 161844 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23304816 is about 4827.5061884994. The cubic root of 23304816 is about 285.6375018429.

The spelling of 23304816 in words is "twenty-three million, three hundred four thousand, eight hundred sixteen".