22009234 has 16 divisors (see below), whose sum is σ = 35742168. Its totient is φ = 10104192.

The previous prime is 22009189. The next prime is 22009241. The reversal of 22009234 is 43290022.

It can be written as a sum of positive squares in 4 ways, for example, as 20675209 + 1334025 = 4547^2 + 1155^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2974 + ... + 7270.

Almost surely, 2^22009234 is an apocalyptic number.

22009234 is a deficient number, since it is larger than the sum of its proper divisors (13732934).

22009234 is a wasteful number, since it uses less digits than its factorization.

22009234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22009234 is about 4691.4000042631. The cubic root of 22009234 is about 280.2431306595.

Adding to 22009234 its reverse (43290022), we get a palindrome (65299256).

The spelling of 22009234 in words is "twenty-two million, nine thousand, two hundred thirty-four".