22017228 has 24 divisors (see below), whose sum is σ = 51781632. Its totient is φ = 7280784.

The previous prime is 22017199. The next prime is 22017251. The reversal of 22017228 is 82271022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22017198 and 22017207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5700 + ... + 8747.

It is an arithmetic number, because the mean of its divisors is an integer number (2157568).

Almost surely, 2^22017228 is an apocalyptic number.

It is an amenable number.

22017228 is an abundant number, since it is smaller than the sum of its proper divisors (29764404).

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

22017228 is a wasteful number, since it uses less digits than its factorization.

22017228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14581 (or 14579 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 22017228 is about 4692.2519113961. The cubic root of 22017228 is about 280.2770556992.

The spelling of 22017228 in words is "twenty-two million, seventeen thousand, two hundred twenty-eight".