22782828 has 12 divisors (see below), whose sum is σ = 53159960. Its totient is φ = 7594272.

The previous prime is 22782817. The next prime is 22782833. The reversal of 22782828 is 82828722.

It is a tau number, because it is divible by the number of its divisors (12).

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, 949273 + ... + 949296.

Almost surely, 2^22782828 is an apocalyptic number.

It is an amenable number.

22782828 is an abundant number, since it is smaller than the sum of its proper divisors (30377132).

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

22782828 is a wasteful number, since it uses less digits than its factorization.

22782828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898576 (or 1898574 counting only the distinct ones).

The product of its digits is 57344, while the sum is 39.

The square root of 22782828 is about 4773.1360759987. The cubic root of 22782828 is about 283.4887814429.

The spelling of 22782828 in words is "twenty-two million, seven hundred eighty-two thousand, eight hundred twenty-eight".