22408722 has 48 divisors (see below), whose sum is σ = 57288192. Its totient is φ = 6194880.

The previous prime is 22408709. The next prime is 22408747. The reversal of 22408722 is 22780422.

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, 1038 + ... + 6774.

It is an arithmetic number, because the mean of its divisors is an integer number (1193504).

Almost surely, 2^22408722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22408722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28644096).

22408722 is an abundant number, since it is smaller than the sum of its proper divisors (34879470).

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

22408722 is a wasteful number, since it uses less digits than its factorization.

22408722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783 (or 5780 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22408722 is about 4733.7851662280. The cubic root of 22408722 is about 281.9285317608.

The spelling of 22408722 in words is "twenty-two million, four hundred eight thousand, seven hundred twenty-two".