22042508 has 12 divisors (see below), whose sum is σ = 40604760. Its totient is φ = 10441152.

The previous prime is 22042477. The next prime is 22042511. The reversal of 22042508 is 80524022.

22042508 is a modest number, since divided by 2508 gives 2204 as remainder.

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 in 3 ways as a sum of consecutive naturals, for example, 144941 + ... + 145092.

It is an arithmetic number, because the mean of its divisors is an integer number (3383730).

Almost surely, 2^22042508 is an apocalyptic number.

It is an amenable number.

22042508 is a deficient number, since it is larger than the sum of its proper divisors (18562252).

22042508 is a wasteful number, since it uses less digits than its factorization.

22042508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290056 (or 290054 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 22042508 is about 4694.9449411042. The cubic root of 22042508 is about 280.3842852726.

The spelling of 22042508 in words is "twenty-two million, forty-two thousand, five hundred eight".