22563628 has 12 divisors (see below), whose sum is σ = 39748912. Its totient is φ = 11206800.

The previous prime is 22563623. The next prime is 22563631. The reversal of 22563628 is 82636522.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22563593 and 22563602.

It is not an unprimeable number, because it can be changed into a prime (22563623) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 18075 + ... + 19282.

Almost surely, 2^22563628 is an apocalyptic number.

It is an amenable number.

22563628 is a deficient number, since it is larger than the sum of its proper divisors (17185284).

22563628 is a wasteful number, since it uses less digits than its factorization.

22563628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37512 (or 37510 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 22563628 is about 4750.1187353581. The cubic root of 22563628 is about 282.5766748305.

The spelling of 22563628 in words is "twenty-two million, five hundred sixty-three thousand, six hundred twenty-eight".