22664072 has 16 divisors (see below), whose sum is σ = 43297740. Its totient is φ = 11118016.

The previous prime is 22664041. The next prime is 22664087. The reversal of 22664072 is 27046622.

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 630436 = 4694^2 + 794^2 .

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, 26303 + ... + 27150.

Almost surely, 2^22664072 is an apocalyptic number.

It is an amenable number.

22664072 is a deficient number, since it is larger than the sum of its proper divisors (20633668).

22664072 is a wasteful number, since it uses less digits than its factorization.

22664072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53512 (or 53508 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 22664072 is about 4760.6797833923. The cubic root of 22664072 is about 282.9953592533.

The spelling of 22664072 in words is "twenty-two million, six hundred sixty-four thousand, seventy-two".