22256946 has 24 divisors (see below), whose sum is σ = 49780224. Its totient is φ = 7179480.

The previous prime is 22256933. The next prime is 22256951. The reversal of 22256946 is 64965222.

It is a self number, because there is not a number n which added to its sum of digits gives 22256946.

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 11 ways as a sum of consecutive naturals, for example, 19386 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (2074176).

Almost surely, 2^22256946 is an apocalyptic number.

22256946 is an abundant number, since it is smaller than the sum of its proper divisors (27523278).

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

22256946 is a wasteful number, since it uses less digits than its factorization.

22256946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39926 (or 39923 counting only the distinct ones).

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

The square root of 22256946 is about 4717.7267831022. The cubic root of 22256946 is about 281.2905814035.

The spelling of 22256946 in words is "twenty-two million, two hundred fifty-six thousand, nine hundred forty-six".