22744864 has 12 divisors (see below), whose sum is σ = 44779014. Its totient is φ = 11372416.

The previous prime is 22744859. The next prime is 22744871. The reversal of 22744864 is 46844722.

It can be written as a sum of positive squares in only one way, i.e., 14288400 + 8456464 = 3780^2 + 2908^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 355357 + ... + 355420.

Almost surely, 2^22744864 is an apocalyptic number.

It is an amenable number.

22744864 is a deficient number, since it is larger than the sum of its proper divisors (22034150).

22744864 is an equidigital number, since it uses as much as digits as its factorization.

22744864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710787 (or 710779 counting only the distinct ones).

The product of its digits is 86016, while the sum is 37.

The square root of 22744864 is about 4769.1575776021. The cubic root of 22744864 is about 283.3312307418.

The spelling of 22744864 in words is "twenty-two million, seven hundred forty-four thousand, eight hundred sixty-four".