22722756 has 24 divisors (see below), whose sum is σ = 60594240. Its totient is φ = 6492192.

The previous prime is 22722737. The next prime is 22722757. The reversal of 22722756 is 65722722.

It is not an unprimeable number, because it can be changed into a prime (22722757) 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, 135171 + ... + 135338.

It is an arithmetic number, because the mean of its divisors is an integer number (2524760).

Almost surely, 2^22722756 is an apocalyptic number.

It is an amenable number.

22722756 is an abundant number, since it is smaller than the sum of its proper divisors (37871484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22722756 is a wasteful number, since it uses less digits than its factorization.

22722756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270523 (or 270521 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 22722756 is about 4766.8392043366. The cubic root of 22722756 is about 283.2394016964.

The spelling of 22722756 in words is "twenty-two million, seven hundred twenty-two thousand, seven hundred fifty-six".