22722292 has 12 divisors (see below), whose sum is σ = 40838980. Its totient is φ = 11054016.

The previous prime is 22722263. The next prime is 22722299. The reversal of 22722292 is 29222722.

It can be written as a sum of positive squares in 2 ways, for example, as 17943696 + 4778596 = 4236^2 + 2186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22722292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76617 + ... + 76912.

Almost surely, 2^22722292 is an apocalyptic number.

It is an amenable number.

22722292 is a deficient number, since it is larger than the sum of its proper divisors (18116688).

22722292 is a wasteful number, since it uses less digits than its factorization.

22722292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153570 (or 153568 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 22722292 is about 4766.7905345211. The cubic root of 22722292 is about 283.2374737616.

The spelling of 22722292 in words is "twenty-two million, seven hundred twenty-two thousand, two hundred ninety-two".