22775772 has 24 divisors (see below), whose sum is σ = 53662336. Its totient is φ = 7517808.

The previous prime is 22775741. The next prime is 22775789. The reversal of 22775772 is 27757722.

It is a self number, because there is not a number n which added to its sum of digits gives 22775772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7978 + ... + 10449.

Almost surely, 2^22775772 is an apocalyptic number.

It is an amenable number.

22775772 is an abundant number, since it is smaller than the sum of its proper divisors (30886564).

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

22775772 is a wasteful number, since it uses less digits than its factorization.

22775772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18537 (or 18535 counting only the distinct ones).

The product of its digits is 96040, while the sum is 39.

The square root of 22775772 is about 4772.3968820709. The cubic root of 22775772 is about 283.4595122731.

The spelling of 22775772 in words is "twenty-two million, seven hundred seventy-five thousand, seven hundred seventy-two".