22664456 has 24 divisors (see below), whose sum is σ = 43297770. Its totient is φ = 11120256.

The previous prime is 22664423. The next prime is 22664459. The reversal of 22664456 is 65446622.

It can be written as a sum of positive squares in 3 ways, for example, as 20884900 + 1779556 = 4570^2 + 1334^2 .

It is not an unprimeable number, because it can be changed into a prime (22664459) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 114950 + ... + 115146.

Almost surely, 2^22664456 is an apocalyptic number.

It is an amenable number.

22664456 is a deficient number, since it is larger than the sum of its proper divisors (20633314).

22664456 is an equidigital number, since it uses as much as digits as its factorization.

22664456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 272 counting only the distinct ones).

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

The square root of 22664456 is about 4760.7201135963. The cubic root of 22664456 is about 282.9969575187.

The spelling of 22664456 in words is "twenty-two million, six hundred sixty-four thousand, four hundred fifty-six".