22204992 has 56 divisors (see below), whose sum is σ = 62215776. Its totient is φ = 6965248.

The previous prime is 22204991. The next prime is 22204993. The reversal of 22204992 is 29940222.

It is an interprime number because it is at equal distance from previous prime (22204991) and next prime (22204993).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22204991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (1110996).

Almost surely, 2^22204992 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 22204992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31107888).

22204992 is an abundant number, since it is smaller than the sum of its proper divisors (40010784).

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

22204992 is a wasteful number, since it uses less digits than its factorization.

22204992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6835 (or 6825 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 22204992 is about 4712.2173124762. The cubic root of 22204992 is about 281.0715403180.

The spelling of 22204992 in words is "twenty-two million, two hundred four thousand, nine hundred ninety-two".