22990422 has 96 divisors (see below), whose sum is σ = 59028480. Its totient is φ = 5840640.

The previous prime is 22990421. The next prime is 22990433. The reversal of 22990422 is 22409922.

It is a self number, because there is not a number n which added to its sum of digits gives 22990422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290979 + ... + 291057.

It is an arithmetic number, because the mean of its divisors is an integer number (614880).

Almost surely, 2^22990422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22990422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29514240).

22990422 is an abundant number, since it is smaller than the sum of its proper divisors (36038058).

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

22990422 is a wasteful number, since it uses less digits than its factorization.

22990422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 145 counting only the distinct ones).

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

The square root of 22990422 is about 4794.8328438018. The cubic root of 22990422 is about 284.3472163332.

The spelling of 22990422 in words is "twenty-two million, nine hundred ninety thousand, four hundred twenty-two".