22642284 has 48 divisors (see below), whose sum is σ = 60988928. Its totient is φ = 6403968.

The previous prime is 22642273. The next prime is 22642313. The reversal of 22642284 is 48224622.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7344 + ... + 9960.

Almost surely, 2^22642284 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 22642284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30494464).

22642284 is an abundant number, since it is smaller than the sum of its proper divisors (38346644).

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

22642284 is a wasteful number, since it uses less digits than its factorization.

22642284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2734 (or 2732 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 22642284 is about 4758.3909044970. The cubic root of 22642284 is about 282.9046447545.

The spelling of 22642284 in words is "twenty-two million, six hundred forty-two thousand, two hundred eighty-four".