22039456 has 12 divisors (see below), whose sum is σ = 43390242. Its totient is φ = 11019712.

The previous prime is 22039421. The next prime is 22039471. The reversal of 22039456 is 65493022.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 3549456 = 4300^2 + 1884^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344335 + ... + 344398.

Almost surely, 2^22039456 is an apocalyptic number.

It is an amenable number.

22039456 is a deficient number, since it is larger than the sum of its proper divisors (21350786).

22039456 is an equidigital number, since it uses as much as digits as its factorization.

22039456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688743 (or 688735 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 22039456 is about 4694.6198994168. The cubic root of 22039456 is about 280.3713440299.

Adding to 22039456 its product of nonzero digits (12960), we get a square (22052416 = 4696²).

The spelling of 22039456 in words is "twenty-two million, thirty-nine thousand, four hundred fifty-six".