22282816 has 28 divisors (see below), whose sum is σ = 44379388. Its totient is φ = 11100672.

The previous prime is 22282807. The next prime is 22282823. The reversal of 22282816 is 61828222.

It can be written as a sum of positive squares in 2 ways, for example, as 16974400 + 5308416 = 4120^2 + 2304^2 .

It is a congruent number.

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, 24970 + ... + 25846.

Almost surely, 2^22282816 is an apocalyptic number.

It is an amenable number.

22282816 is a deficient number, since it is larger than the sum of its proper divisors (22096572).

22282816 is an equidigital number, since it uses as much as digits as its factorization.

22282816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1276 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 22282816 is about 4720.4677734309. The cubic root of 22282816 is about 281.3995237195.

It can be divided in two parts, 222 and 82816, that added together give a palindrome (83038).

The spelling of 22282816 in words is "twenty-two million, two hundred eighty-two thousand, eight hundred sixteen".