22079904 has 192 divisors, whose sum is σ = 75479040. Its totient is φ = 5483520.

The previous prime is 22079891. The next prime is 22079929. The reversal of 22079904 is 40997022.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214317 + ... + 214419.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^22079904 is an apocalyptic number.

22079904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22079904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739520).

22079904 is an abundant number, since it is smaller than the sum of its proper divisors (53399136).

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

22079904 is a wasteful number, since it uses less digits than its factorization.

22079904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 22079904 is about 4698.9258346988. The cubic root of 22079904 is about 280.5427567551.

The spelling of 22079904 in words is "twenty-two million, seventy-nine thousand, nine hundred four".