22985018 has 12 divisors (see below), whose sum is σ = 40106682. Its totient is φ = 9850680.

The previous prime is 22984993. The next prime is 22985033. The reversal of 22985018 is 81058922.

It can be written as a sum of positive squares in only one way, i.e., 19386409 + 3598609 = 4403^2 + 1897^2 .

It is a super-2 number, since 2×22985018² = 1056622104920648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117173 + ... + 117368.

Almost surely, 2^22985018 is an apocalyptic number.

22985018 is a deficient number, since it is larger than the sum of its proper divisors (17121664).

22985018 is a wasteful number, since it uses less digits than its factorization.

22985018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234557 (or 234550 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 22985018 is about 4794.2692873889. The cubic root of 22985018 is about 284.3249355653.

The spelling of 22985018 in words is "twenty-two million, nine hundred eighty-five thousand, eighteen".