22156208 has 20 divisors (see below), whose sum is σ = 43122240. Its totient is φ = 11027904.

The previous prime is 22156201. The next prime is 22156213. The reversal of 22156208 is 80265122.

It is not an unprimeable number, because it can be changed into a prime (22156201) 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, 641 + ... + 6687.

It is an arithmetic number, because the mean of its divisors is an integer number (2156112).

Almost surely, 2^22156208 is an apocalyptic number.

It is an amenable number.

22156208 is a deficient number, since it is larger than the sum of its proper divisors (20966032).

22156208 is a wasteful number, since it uses less digits than its factorization.

22156208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6284 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 22156208 is about 4707.0381345385. The cubic root of 22156208 is about 280.8655528862.

The spelling of 22156208 in words is "twenty-two million, one hundred fifty-six thousand, two hundred eight".