22556772 has 48 divisors (see below), whose sum is σ = 66837120. Its totient is φ = 6444576.

The previous prime is 22556761. The next prime is 22556789. The reversal of 22556772 is 27765522.

22556772 is a `hidden beast` number, since 2 + 25 + 567 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14163 + ... + 15674.

It is an arithmetic number, because the mean of its divisors is an integer number (1392440).

Almost surely, 2^22556772 is an apocalyptic number.

It is an amenable number.

22556772 is an abundant number, since it is smaller than the sum of its proper divisors (44280348).

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

22556772 is a wasteful number, since it uses less digits than its factorization.

22556772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29857 (or 29849 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 22556772 is about 4749.3970143588. The cubic root of 22556772 is about 282.5480514499.

The spelling of 22556772 in words is "twenty-two million, five hundred fifty-six thousand, seven hundred seventy-two".