22556236 has 12 divisors (see below), whose sum is σ = 40540528. Its totient is φ = 10973232.

The previous prime is 22556221. The next prime is 22556239. The reversal of 22556236 is 63265522.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22556198 and 22556207.

It is not an unprimeable number, because it can be changed into a prime (22556239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76056 + ... + 76351.

Almost surely, 2^22556236 is an apocalyptic number.

It is an amenable number.

22556236 is a deficient number, since it is larger than the sum of its proper divisors (17984292).

22556236 is a wasteful number, since it uses less digits than its factorization.

22556236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152448 (or 152446 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 22556236 is about 4749.3405858077. The cubic root of 22556236 is about 282.5458134382.

The spelling of 22556236 in words is "twenty-two million, five hundred fifty-six thousand, two hundred thirty-six".