22922208 has 144 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 7015680.

The previous prime is 22922197. The next prime is 22922243. The reversal of 22922208 is 80222922.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 322813 + ... + 322883.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^22922208 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 22922208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35380800).

22922208 is an abundant number, since it is smaller than the sum of its proper divisors (47839392).

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

22922208 is a wasteful number, since it uses less digits than its factorization.

22922208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22922208 is about 4787.7142771891. The cubic root of 22922208 is about 284.0657124937.

The spelling of 22922208 in words is "twenty-two million, nine hundred twenty-two thousand, two hundred eight".