22808256 has 56 divisors (see below), whose sum is σ = 60740544. Its totient is φ = 7553280.

The previous prime is 22808231. The next prime is 22808257. The reversal of 22808256 is 65280822.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (22808257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40231 + ... + 40793.

Almost surely, 2^22808256 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 22808256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30370272).

22808256 is an abundant number, since it is smaller than the sum of its proper divisors (37932288).

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

22808256 is a wasteful number, since it uses less digits than its factorization.

22808256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 22808256 is about 4775.7989907449. The cubic root of 22808256 is about 283.5942098612.

The spelling of 22808256 in words is "twenty-two million, eight hundred eight thousand, two hundred fifty-six".