22412290 has 16 divisors (see below), whose sum is σ = 42715512. Its totient is φ = 8437504.

The previous prime is 22412233. The next prime is 22412297. The reversal of 22412290 is 9221422.

It can be written as a sum of positive squares in 4 ways, for example, as 16752649 + 5659641 = 4093^2 + 2379^2 .

It is not an unprimeable number, because it can be changed into a prime (22412297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65749 + ... + 66088.

Almost surely, 2^22412290 is an apocalyptic number.

22412290 is a deficient number, since it is larger than the sum of its proper divisors (20303222).

22412290 is a wasteful number, since it uses less digits than its factorization.

22412290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131861.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 22412290 is about 4734.1620166614. The cubic root of 22412290 is about 281.9434942029.

The spelling of 22412290 in words is "twenty-two million, four hundred twelve thousand, two hundred ninety".