22942656 has 224 divisors, whose sum is σ = 79004160. Its totient is φ = 6451200.

The previous prime is 22942643. The next prime is 22942669. The reversal of 22942656 is 65624922.

22942656 is a `hidden beast` number, since 229 + 426 + 5 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (22942643) and next prime (22942669).

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (51840) is a multiple of the sum of its prime factors (120).

It is a self number, because there is not a number n which added to its sum of digits gives 22942656.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 323101 + ... + 323171.

Almost surely, 2^22942656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22942656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39502080).

22942656 is an abundant number, since it is smaller than the sum of its proper divisors (56061504).

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

22942656 is a wasteful number, since it uses less digits than its factorization.

22942656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 104 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 22942656 is about 4789.8492669394. The cubic root of 22942656 is about 284.1501553383.

It can be divided in two parts, 2294 and 2656, that added together give a triangular number (4950 = T₉₉).

The spelling of 22942656 in words is "twenty-two million, nine hundred forty-two thousand, six hundred fifty-six".