22045288 has 8 divisors (see below), whose sum is σ = 41334930. Its totient is φ = 11022640.

The previous prime is 22045279. The next prime is 22045333. The reversal of 22045288 is 88254022.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 161604 = 4678^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1377823 + ... + 1377838.

Almost surely, 2^22045288 is an apocalyptic number.

It is an amenable number.

22045288 is a deficient number, since it is larger than the sum of its proper divisors (19289642).

22045288 is a wasteful number, since it uses less digits than its factorization.

22045288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755667 (or 2755663 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 22045288 is about 4695.2409948798. The cubic root of 22045288 is about 280.3960721277.

The spelling of 22045288 in words is "twenty-two million, forty-five thousand, two hundred eighty-eight".