22156893 has 24 divisors (see below), whose sum is σ = 35368320. Its totient is φ = 13253760.

The previous prime is 22156879. The next prime is 22156913. The reversal of 22156893 is 39865122.

22156893 is a `hidden beast` number, since 2 + 2 + 1 + 568 + 93 = 666.

It is not a de Polignac number, because 22156893 - 2⁴ = 22156877 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 6405 + ... + 9237.

It is an arithmetic number, because the mean of its divisors is an integer number (1473680).

Almost surely, 2^22156893 is an apocalyptic number.

It is an amenable number.

22156893 is a deficient number, since it is larger than the sum of its proper divisors (13211427).

22156893 is a wasteful number, since it uses less digits than its factorization.

22156893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2926 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 22156893 is about 4707.1108973552. The cubic root of 22156893 is about 280.8684473484.

The spelling of 22156893 in words is "twenty-two million, one hundred fifty-six thousand, eight hundred ninety-three".