22985864 has 32 divisors (see below), whose sum is σ = 48643200. Its totient is φ = 10086720.

The previous prime is 22985863. The next prime is 22985873. The reversal of 22985864 is 46858922.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (22985863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1952 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (1520100).

Almost surely, 2^22985864 is an apocalyptic number.

It is an amenable number.

22985864 is an abundant number, since it is smaller than the sum of its proper divisors (25657336).

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

22985864 is a wasteful number, since it uses less digits than its factorization.

22985864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9053 (or 9049 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 22985864 is about 4794.3575169151. The cubic root of 22985864 is about 284.3284238658.

It can be divided in two parts, 229858 and 64, that added together give a palindrome (229922).

The spelling of 22985864 in words is "twenty-two million, nine hundred eighty-five thousand, eight hundred sixty-four".