23015216 has 20 divisors (see below), whose sum is σ = 50962512. Its totient is φ = 9863616.

The previous prime is 23015207. The next prime is 23015233. The reversal of 23015216 is 61251032.

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, 102635 + ... + 102858.

Almost surely, 2^23015216 is an apocalyptic number.

It is an amenable number.

23015216 is an abundant number, since it is smaller than the sum of its proper divisors (27947296).

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

23015216 is a wasteful number, since it uses less digits than its factorization.

23015216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205508 (or 205502 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 23015216 is about 4797.4176386885. The cubic root of 23015216 is about 284.4493976098.

Adding to 23015216 its reverse (61251032), we get a palindrome (84266248).

The spelling of 23015216 in words is "twenty-three million, fifteen thousand, two hundred sixteen".