22756422 has 32 divisors (see below), whose sum is σ = 49335552. Its totient is φ = 6956064.

The previous prime is 22756373. The next prime is 22756427. The reversal of 22756422 is 22465722.

It is a self number, because there is not a number n which added to its sum of digits gives 22756422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22756427) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 12153 + ... + 13899.

It is an arithmetic number, because the mean of its divisors is an integer number (1541736).

Almost surely, 2^22756422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22756422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24667776).

22756422 is an abundant number, since it is smaller than the sum of its proper divisors (26579130).

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

22756422 is a wasteful number, since it uses less digits than its factorization.

22756422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932.

The product of its digits is 13440, while the sum is 30.

The square root of 22756422 is about 4770.3691681043. The cubic root of 22756422 is about 283.3792150226.

The spelling of 22756422 in words is "twenty-two million, seven hundred fifty-six thousand, four hundred twenty-two".