22408490 has 16 divisors (see below), whose sum is σ = 43438248. Its totient is φ = 8273856.

The previous prime is 22408489. The next prime is 22408493. The reversal of 22408490 is 9480422.

It can be written as a sum of positive squares in 4 ways, for example, as 17901361 + 4507129 = 4231^2 + 2123^2 .

It is not an unprimeable number, because it can be changed into a prime (22408493) 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, 86057 + ... + 86316.

Almost surely, 2^22408490 is an apocalyptic number.

22408490 is a deficient number, since it is larger than the sum of its proper divisors (21029758).

22408490 is a wasteful number, since it uses less digits than its factorization.

22408490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172393.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 22408490 is about 4733.7606614615. The cubic root of 22408490 is about 281.9275588116.

The spelling of 22408490 in words is "twenty-two million, four hundred eight thousand, four hundred ninety".