22204605 has 16 divisors (see below), whose sum is σ = 35665920. Its totient is φ = 11796288.

The previous prime is 22204583. The next prime is 22204621. The reversal of 22204605 is 50640222.

It is not a de Polignac number, because 22204605 - 2⁶ = 22204541 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1284 + ... + 6786.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^22204605 is an apocalyptic number.

It is an amenable number.

22204605 is a deficient number, since it is larger than the sum of its proper divisors (13461315).

22204605 is a wasteful number, since it uses less digits than its factorization.

22204605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 22204605 is about 4712.1762488260. The cubic root of 22204605 is about 281.0699074221.

Adding to 22204605 its reverse (50640222), we get a palindrome (72844827).

The spelling of 22204605 in words is "twenty-two million, two hundred four thousand, six hundred five".