22285712 has 30 divisors (see below), whose sum is σ = 45154662. Its totient is φ = 10654336.

The previous prime is 22285709. The next prime is 22285721. The reversal of 22285712 is 21758222.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 6635776 = 3956^2 + 2576^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7148 + ... + 9780.

Almost surely, 2^22285712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22285712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22577331).

22285712 is an abundant number, since it is smaller than the sum of its proper divisors (22868950).

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

22285712 is a wasteful number, since it uses less digits than its factorization.

22285712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2687 (or 2658 counting only the distinct ones).

The product of its digits is 4480, while the sum is 29.

The square root of 22285712 is about 4720.7745127256. The cubic root of 22285712 is about 281.4117139459.

The spelling of 22285712 in words is "twenty-two million, two hundred eighty-five thousand, seven hundred twelve".