22913880 has 64 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 5554560.

The previous prime is 22913873. The next prime is 22913881. The reversal of 22913880 is 8831922.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22913881) 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 15 ways as a sum of consecutive naturals, for example, 7360 + ... + 9999.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^22913880 is an apocalyptic number.

22913880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22913880 is an abundant number, since it is smaller than the sum of its proper divisors (52081320).

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

22913880 is a wasteful number, since it uses less digits than its factorization.

22913880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17384 (or 17380 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 22913880 is about 4786.8444720922. The cubic root of 22913880 is about 284.0313064741.

The spelling of 22913880 in words is "twenty-two million, nine hundred thirteen thousand, eight hundred eighty".