22706656 has 48 divisors (see below), whose sum is σ = 51480576. Its totient is φ = 9657216.

The previous prime is 22706627. The next prime is 22706683. The reversal of 22706656 is 65660722.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37105 + ... + 37711.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 2^22706656 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 22706656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25740288).

22706656 is an abundant number, since it is smaller than the sum of its proper divisors (28773920).

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

22706656 is a wasteful number, since it uses less digits than its factorization.

22706656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 22706656 is about 4765.1501550318. The cubic root of 22706656 is about 283.1724903322.

The spelling of 22706656 in words is "twenty-two million, seven hundred six thousand, six hundred fifty-six".