22282280 has 16 divisors (see below), whose sum is σ = 50135220. Its totient is φ = 8912896.

The previous prime is 22282279. The next prime is 22282283. The reversal of 22282280 is 8228222.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 3912484 = 4286^2 + 1978^2 .

It is not an unprimeable number, because it can be changed into a prime (22282283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278489 + ... + 278568.

Almost surely, 2^22282280 is an apocalyptic number.

22282280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22282280 is an abundant number, since it is smaller than the sum of its proper divisors (27852940).

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

22282280 is a wasteful number, since it uses less digits than its factorization.

22282280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557068 (or 557064 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 22282280 is about 4720.4109990551. The cubic root of 22282280 is about 281.3972674015.

The spelling of 22282280 in words is "twenty-two million, two hundred eighty-two thousand, two hundred eighty".