22256142 has 8 divisors (see below), whose sum is σ = 44512296. Its totient is φ = 7418712.

The previous prime is 22256123. The next prime is 22256189. The reversal of 22256142 is 24165222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

22256142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1854673 + ... + 1854684.

It is an arithmetic number, because the mean of its divisors is an integer number (5564037).

Almost surely, 2^22256142 is an apocalyptic number.

22256142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22256142 is a wasteful number, since it uses less digits than its factorization.

22256142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709362.

The product of its digits is 1920, while the sum is 24.

The square root of 22256142 is about 4717.6415718026. The cubic root of 22256142 is about 281.2871942908.

The spelling of 22256142 in words is "twenty-two million, two hundred fifty-six thousand, one hundred forty-two".