22455904 has 24 divisors (see below), whose sum is σ = 45638208. Its totient is φ = 10865280.

The previous prime is 22455893. The next prime is 22455913. The reversal of 22455904 is 40955422.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10327 + ... + 12310.

It is an arithmetic number, because the mean of its divisors is an integer number (1901592).

Almost surely, 2^22455904 is an apocalyptic number.

It is an amenable number.

22455904 is an abundant number, since it is smaller than the sum of its proper divisors (23182304).

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

22455904 is a wasteful number, since it uses less digits than its factorization.

22455904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22678 (or 22670 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 22455904 is about 4738.7660841194. The cubic root of 22455904 is about 282.1262617199.

The spelling of 22455904 in words is "twenty-two million, four hundred fifty-five thousand, nine hundred four".