22985690 has 96 divisors (see below), whose sum is σ = 53758080. Its totient is φ = 6918912.

The previous prime is 22985689. The next prime is 22985701. The reversal of 22985690 is 9658922.

It is a super-2 number, since 2×22985690² = 1056683889552200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 343037 + ... + 343103.

It is an arithmetic number, because the mean of its divisors is an integer number (559980).

Almost surely, 2^22985690 is an apocalyptic number.

22985690 is an abundant number, since it is smaller than the sum of its proper divisors (30772390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22985690 is a wasteful number, since it uses less digits than its factorization.

22985690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 22985690 is about 4794.3393705494. The cubic root of 22985690 is about 284.3277064209.

The spelling of 22985690 in words is "twenty-two million, nine hundred eighty-five thousand, six hundred ninety".