22283240 has 48 divisors (see below), whose sum is σ = 58328100. Its totient is φ = 7639296.

The previous prime is 22283237. The next prime is 22283263. The reversal of 22283240 is 4238222.

It can be written as a sum of positive squares in 2 ways, for example, as 22259524 + 23716 = 4718^2 + 154^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3725 + ... + 7644.

Almost surely, 2^22283240 is an apocalyptic number.

22283240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22283240 is an abundant number, since it is smaller than the sum of its proper divisors (36044860).

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

22283240 is a wasteful number, since it uses less digits than its factorization.

22283240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11394 (or 11383 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 22283240 is about 4720.5126840207. The cubic root of 22283240 is about 281.4013085424.

The spelling of 22283240 in words is "twenty-two million, two hundred eighty-three thousand, two hundred forty".