22568144 has 10 divisors (see below), whose sum is σ = 43725810. Its totient is φ = 11284064.

The previous prime is 22568137. The next prime is 22568153. The reversal of 22568144 is 44186522.

It can be written as a sum of positive squares in only one way, i.e., 16711744 + 5856400 = 4088^2 + 2420^2 .

It is a super-2 number, since 2×22568144² = 1018642247209472, 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 22568144.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 705239 + ... + 705270.

It is an arithmetic number, because the mean of its divisors is an integer number (4372581).

Almost surely, 2^22568144 is an apocalyptic number.

It is an amenable number.

22568144 is a deficient number, since it is larger than the sum of its proper divisors (21157666).

22568144 is a wasteful number, since it uses less digits than its factorization.

22568144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410517 (or 1410511 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 22568144 is about 4750.5940681140. The cubic root of 22568144 is about 282.5955256869.

The spelling of 22568144 in words is "twenty-two million, five hundred sixty-eight thousand, one hundred forty-four".