22634428 has 12 divisors (see below), whose sum is σ = 39644920. Its totient is φ = 11307312.

The previous prime is 22634411. The next prime is 22634431. The reversal of 22634428 is 82443622.

It is a self number, because there is not a number n which added to its sum of digits gives 22634428.

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, 5575 + ... + 8737.

Almost surely, 2^22634428 is an apocalyptic number.

It is an amenable number.

22634428 is a deficient number, since it is larger than the sum of its proper divisors (17010492).

22634428 is a wasteful number, since it uses less digits than its factorization.

22634428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4956 (or 4954 counting only the distinct ones).

The product of its digits is 18432, while the sum is 31.

The square root of 22634428 is about 4757.5653437446. The cubic root of 22634428 is about 282.8719219665.

The spelling of 22634428 in words is "twenty-two million, six hundred thirty-four thousand, four hundred twenty-eight".