22256328 has 32 divisors (see below), whose sum is σ = 56475360. Its totient is φ = 7307520.

The previous prime is 22256309. The next prime is 22256329. The reversal of 22256328 is 82365222.

It is a junction number, because it is equal to n+sod(n) for n = 22256295 and 22256304.

It is not an unprimeable number, because it can be changed into a prime (22256329) 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, 5313 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (1764855).

Almost surely, 2^22256328 is an apocalyptic number.

It is an amenable number.

22256328 is an abundant number, since it is smaller than the sum of its proper divisors (34219032).

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

22256328 is a wasteful number, since it uses less digits than its factorization.

22256328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13917 (or 13913 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 22256328 is about 4717.6612850013. The cubic root of 22256328 is about 281.2879778839.

The spelling of 22256328 in words is "twenty-two million, two hundred fifty-six thousand, three hundred twenty-eight".