22740944 has 10 divisors (see below), whose sum is σ = 44060610. Its totient is φ = 11370464.

The previous prime is 22740943. The next prime is 22740961. The reversal of 22740944 is 44904722.

It can be written as a sum of positive squares in only one way, i.e., 19891600 + 2849344 = 4460^2 + 1688^2 .

It is a super-2 number, since 2×22740944² = 1034301068022272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22740944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710639 + ... + 710670.

It is an arithmetic number, because the mean of its divisors is an integer number (4406061).

Almost surely, 2^22740944 is an apocalyptic number.

It is an amenable number.

22740944 is a deficient number, since it is larger than the sum of its proper divisors (21319666).

22740944 is a wasteful number, since it uses less digits than its factorization.

22740944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421317 (or 1421311 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 22740944 is about 4768.7465858441. The cubic root of 22740944 is about 283.3149527484.

The spelling of 22740944 in words is "twenty-two million, seven hundred forty thousand, nine hundred forty-four".