22645768 has 32 divisors (see below), whose sum is σ = 45594360. Its totient is φ = 10506240.

The previous prime is 22645729. The next prime is 22645769. The reversal of 22645768 is 86754622.

It can be written as a sum of positive squares in 4 ways, for example, as 22071204 + 574564 = 4698^2 + 758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22645768.

It is not an unprimeable number, because it can be changed into a prime (22645769) 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, 8788 + ... + 11068.

Almost surely, 2^22645768 is an apocalyptic number.

It is an amenable number.

22645768 is an abundant number, since it is smaller than the sum of its proper divisors (22948592).

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

22645768 is a wasteful number, since it uses less digits than its factorization.

22645768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2377 (or 2373 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The square root of 22645768 is about 4758.7569805570. The cubic root of 22645768 is about 282.9191543218.

The spelling of 22645768 in words is "twenty-two million, six hundred forty-five thousand, seven hundred sixty-eight".