22549664 has 24 divisors (see below), whose sum is σ = 44840628. Its totient is φ = 11161600.

The previous prime is 22549661. The next prime is 22549669. The reversal of 22549664 is 46694522.

It can be written as a sum of positive squares in 2 ways, for example, as 22165264 + 384400 = 4708^2 + 620^2 .

It is not an unprimeable number, because it can be changed into a prime (22549661) 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, 257 + ... + 6720.

Almost surely, 2^22549664 is an apocalyptic number.

It is an amenable number.

22549664 is a deficient number, since it is larger than the sum of its proper divisors (22290964).

22549664 is a wasteful number, since it uses less digits than its factorization.

22549664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7088 (or 7080 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 22549664 is about 4748.6486498792. The cubic root of 22549664 is about 282.5183698604.

The spelling of 22549664 in words is "twenty-two million, five hundred forty-nine thousand, six hundred sixty-four".