22913892 has 36 divisors (see below), whose sum is σ = 61329996. Its totient is φ = 7188480.

The previous prime is 22913887. The next prime is 22913899. The reversal of 22913892 is 29831922.

It can be written as a sum of positive squares in 2 ways, for example, as 15163236 + 7750656 = 3894^2 + 2784^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22913899) 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 11 ways as a sum of consecutive naturals, for example, 18109 + ... + 19332.

It is an arithmetic number, because the mean of its divisors is an integer number (1703611).

Almost surely, 2^22913892 is an apocalyptic number.

It is an amenable number.

22913892 is an abundant number, since it is smaller than the sum of its proper divisors (38416104).

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

22913892 is a wasteful number, since it uses less digits than its factorization.

22913892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37468 (or 37463 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 22913892 is about 4786.8457255274. The cubic root of 22913892 is about 284.0313560565.

The spelling of 22913892 in words is "twenty-two million, nine hundred thirteen thousand, eight hundred ninety-two".