22879422 has 48 divisors (see below), whose sum is σ = 51891840. Its totient is φ = 7555032.

The previous prime is 22879421. The next prime is 22879471. The reversal of 22879422 is 22497822.

It is a happy number.

22879422 is a `hidden beast` number, since 228 + 7 + 9 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22879421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86863 + ... + 87125.

It is an arithmetic number, because the mean of its divisors is an integer number (1081080).

Almost surely, 2^22879422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22879422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25945920).

22879422 is an abundant number, since it is smaller than the sum of its proper divisors (29012418).

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

22879422 is a wasteful number, since it uses less digits than its factorization.

22879422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459 (or 447 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 22879422 is about 4783.2438783738. The cubic root of 22879422 is about 283.8888591765. Note that the first 4 decimals are identical.

The spelling of 22879422 in words is "twenty-two million, eight hundred seventy-nine thousand, four hundred twenty-two".