22285028 has 12 divisors (see below), whose sum is σ = 41292972. Its totient is φ = 10487040.

The previous prime is 22285009. The next prime is 22285061. The reversal of 22285028 is 82058222.

It can be written as a sum of positive squares in 2 ways, for example, as 6666724 + 15618304 = 2582^2 + 3952^2 .

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, 163793 + ... + 163928.

It is an arithmetic number, because the mean of its divisors is an integer number (3441081).

Almost surely, 2^22285028 is an apocalyptic number.

It is an amenable number.

22285028 is a deficient number, since it is larger than the sum of its proper divisors (19007944).

22285028 is a wasteful number, since it uses less digits than its factorization.

22285028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327742 (or 327740 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 22285028 is about 4720.7020664304. The cubic root of 22285028 is about 281.4088348579.

The spelling of 22285028 in words is "twenty-two million, two hundred eighty-five thousand, twenty-eight".