22492772 has 6 divisors (see below), whose sum is σ = 39362358. Its totient is φ = 11246384.

The previous prime is 22492759. The next prime is 22492787. The reversal of 22492772 is 27729422.

It can be written as a sum of positive squares in only one way, i.e., 17757796 + 4734976 = 4214^2 + 2176^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811593 + ... + 2811600.

It is an arithmetic number, because the mean of its divisors is an integer number (6560393).

Almost surely, 2^22492772 is an apocalyptic number.

It is an amenable number.

22492772 is a deficient number, since it is larger than the sum of its proper divisors (16869586).

22492772 is a wasteful number, since it uses less digits than its factorization.

22492772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623197 (or 5623195 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 22492772 is about 4742.6545309563. The cubic root of 22492772 is about 282.2805751670.

The spelling of 22492772 in words is "twenty-two million, four hundred ninety-two thousand, seven hundred seventy-two".