22756772 has 24 divisors (see below), whose sum is σ = 40780320. Its totient is φ = 11108160.

The previous prime is 22756771. The next prime is 22756777. The reversal of 22756772 is 27765722.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22756771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49568 + ... + 50024.

It is an arithmetic number, because the mean of its divisors is an integer number (1699180).

Almost surely, 2^22756772 is an apocalyptic number.

It is an amenable number.

22756772 is a deficient number, since it is larger than the sum of its proper divisors (18023548).

22756772 is a wasteful number, since it uses less digits than its factorization.

22756772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 729 counting only the distinct ones).

The product of its digits is 82320, while the sum is 38.

The square root of 22756772 is about 4770.4058527551. The cubic root of 22756772 is about 283.3806678318.

The spelling of 22756772 in words is "twenty-two million, seven hundred fifty-six thousand, seven hundred seventy-two".