22546664 has 48 divisors (see below), whose sum is σ = 49709700. Its totient is φ = 9558528.

The previous prime is 22546651. The next prime is 22546687. The reversal of 22546664 is 46664522.

It can be written as a sum of positive squares in 2 ways, for example, as 21996100 + 550564 = 4690^2 + 742^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44042 + ... + 44550.

Almost surely, 2^22546664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22546664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24854850).

22546664 is an abundant number, since it is smaller than the sum of its proper divisors (27163036).

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

22546664 is a wasteful number, since it uses less digits than its factorization.

22546664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 631 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 22546664 is about 4748.3327600327. The cubic root of 22546664 is about 282.5058405872.

The spelling of 22546664 in words is "twenty-two million, five hundred forty-six thousand, six hundred sixty-four".