22685144 has 32 divisors (see below), whose sum is σ = 44035920. Its totient is φ = 10947456.

The previous prime is 22685137. The next prime is 22685147. The reversal of 22685144 is 44158622.

It is a self number, because there is not a number n which added to its sum of digits gives 22685144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22685147) 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, 50987 + ... + 51429.

Almost surely, 2^22685144 is an apocalyptic number.

It is an amenable number.

22685144 is a deficient number, since it is larger than the sum of its proper divisors (21350776).

22685144 is a wasteful number, since it uses less digits than its factorization.

22685144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 655 counting only the distinct ones).

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

The square root of 22685144 is about 4762.8923985326. The cubic root of 22685144 is about 283.0830373934.

The spelling of 22685144 in words is "twenty-two million, six hundred eighty-five thousand, one hundred forty-four".