22022288 has 10 divisors (see below), whose sum is σ = 42668214. Its totient is φ = 11011136.

The previous prime is 22022269. The next prime is 22022291. The reversal of 22022288 is 88222022.

It can be written as a sum of positive squares in only one way, i.e., 21977344 + 44944 = 4688^2 + 212^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688181 + ... + 688212.

Almost surely, 2^22022288 is an apocalyptic number.

It is an amenable number.

22022288 is a deficient number, since it is larger than the sum of its proper divisors (20645926).

22022288 is a wasteful number, since it uses less digits than its factorization.

22022288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376401 (or 1376395 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 22022288 is about 4692.7910671582. The cubic root of 22022288 is about 280.2985251484.

The spelling of 22022288 in words is "twenty-two million, twenty-two thousand, two hundred eighty-eight".