22042288 has 10 divisors (see below), whose sum is σ = 42706964. Its totient is φ = 11021136.

The previous prime is 22042249. The next prime is 22042301. The reversal of 22042288 is 88224022.

It is a super-3 number, since 3×22042288³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 688806 + ... + 688837.

Almost surely, 2^22042288 is an apocalyptic number.

It is an amenable number.

22042288 is a deficient number, since it is larger than the sum of its proper divisors (20664676).

22042288 is a wasteful number, since it uses less digits than its factorization.

22042288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377651 (or 1377645 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 28.

The square root of 22042288 is about 4694.9215115910. The cubic root of 22042288 is about 280.3833524575.

The spelling of 22042288 in words is "twenty-two million, forty-two thousand, two hundred eighty-eight".