22942272 has 84 divisors (see below), whose sum is σ = 64257936. Its totient is φ = 7223040.

The previous prime is 22942267. The next prime is 22942289. The reversal of 22942272 is 27224922.

Its product of digits (8064) is a multiple of the sum of its prime factors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69147 + ... + 69477.

Almost surely, 2^22942272 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 22942272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32128968).

22942272 is an abundant number, since it is smaller than the sum of its proper divisors (41315664).

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

22942272 is a wasteful number, since it uses less digits than its factorization.

22942272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384 (or 355 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 22942272 is about 4789.8091820030. The cubic root of 22942272 is about 284.1485700195.

The spelling of 22942272 in words is "twenty-two million, nine hundred forty-two thousand, two hundred seventy-two".