22988889 has 48 divisors (see below), whose sum is σ = 42307200. Its totient is φ = 11924640.

The previous prime is 22988881. The next prime is 22988893. The reversal of 22988889 is 98888922.

It is not a de Polignac number, because 22988889 - 2³ = 22988881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22988881) 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 47 ways as a sum of consecutive naturals, for example, 33619 + ... + 34295.

It is an arithmetic number, because the mean of its divisors is an integer number (881400).

Almost surely, 2^22988889 is an apocalyptic number.

It is an amenable number.

22988889 is a deficient number, since it is larger than the sum of its proper divisors (19318311).

22988889 is a wasteful number, since it uses less digits than its factorization.

22988889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 698 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 54.

The square root of 22988889 is about 4794.6729815494. The cubic root of 22988889 is about 284.3408961075.

The spelling of 22988889 in words is "twenty-two million, nine hundred eighty-eight thousand, eight hundred eighty-nine".