22899904 has 56 divisors (see below), whose sum is σ = 48572928. Its totient is φ = 10686720.

The previous prime is 22899893. The next prime is 22899911. The reversal of 22899904 is 40999822.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69019 + ... + 69349.

Almost surely, 2^22899904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22899904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24286464).

22899904 is an abundant number, since it is smaller than the sum of its proper divisors (25673024).

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

22899904 is a wasteful number, since it uses less digits than its factorization.

22899904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 22899904 is about 4785.3844150705. The cubic root of 22899904 is about 283.9735477578.

The spelling of 22899904 in words is "twenty-two million, eight hundred ninety-nine thousand, nine hundred four".