22156856 has 16 divisors (see below), whose sum is σ = 41615640. Its totient is φ = 11059360.

The previous prime is 22156853. The next prime is 22156861. The reversal of 22156856 is 65865122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3371 + ... + 7461.

Almost surely, 2^22156856 is an apocalyptic number.

It is an amenable number.

22156856 is a deficient number, since it is larger than the sum of its proper divisors (19458784).

22156856 is a wasteful number, since it uses less digits than its factorization.

22156856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4774 (or 4770 counting only the distinct ones).

The product of its digits is 28800, while the sum is 35.

The square root of 22156856 is about 4707.1069671296. The cubic root of 22156856 is about 280.8682910067.

The spelling of 22156856 in words is "twenty-two million, one hundred fifty-six thousand, eight hundred fifty-six".