22915712 has 16 divisors (see below), whose sum is σ = 45652650. Its totient is φ = 11457792.

The previous prime is 22915709. The next prime is 22915721. The reversal of 22915712 is 21751922.

It can be written as a sum of positive squares in only one way, i.e., 11999296 + 10916416 = 3464^2 + 3304^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89387 + ... + 89642.

Almost surely, 2^22915712 is an apocalyptic number.

It is an amenable number.

22915712 is a deficient number, since it is larger than the sum of its proper divisors (22736938).

22915712 is an equidigital number, since it uses as much as digits as its factorization.

22915712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179043 (or 179031 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 22915712 is about 4787.0358260619. The cubic root of 22915712 is about 284.0388758525.

The spelling of 22915712 in words is "twenty-two million, nine hundred fifteen thousand, seven hundred twelve".