22738664 has 16 divisors (see below), whose sum is σ = 45914820. Its totient is φ = 10494720.

The previous prime is 22738657. The next prime is 22738669. The reversal of 22738664 is 46683722.

It can be written as a sum of positive squares in 2 ways, for example, as 16337764 + 6400900 = 4042^2 + 2530^2 .

It is not an unprimeable number, because it can be changed into a prime (22738669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109217 + ... + 109424.

Almost surely, 2^22738664 is an apocalyptic number.

It is an amenable number.

22738664 is an abundant number, since it is smaller than the sum of its proper divisors (23176156).

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

22738664 is a wasteful number, since it uses less digits than its factorization.

22738664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218660 (or 218656 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 22738664 is about 4768.5075233243. The cubic root of 22738664 is about 283.3054840755.

The spelling of 22738664 in words is "twenty-two million, seven hundred thirty-eight thousand, six hundred sixty-four".