22956 has 12 divisors (see below), whose sum is σ = 53592. Its totient is φ = 7648.

The previous prime is 22943. The next prime is 22961. The reversal of 22956 is 65922.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 2¹³ + 2¹³ + 9⁴ + 5 + 6 .

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945 + ... + 968.

It is an arithmetic number, because the mean of its divisors is an integer number (4466).

2²²⁹⁵⁶ is an apocalyptic number.

It is an amenable number.

22956 is an abundant number, since it is smaller than the sum of its proper divisors (30636).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26796).

22956 is a wasteful number, since it uses less digits than its factorization.

22956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920 (or 1918 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 22956 is about 151.5123757321. The cubic root of 22956 is about 28.4205234181.

The spelling of 22956 in words is "twenty-two thousand, nine hundred fifty-six".