22204434 has 32 divisors (see below), whose sum is σ = 50993280. Its totient is φ = 6314112.

The previous prime is 22204433. The next prime is 22204439. The reversal of 22204434 is 43440222.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 22204434.

It is not an unprimeable number, because it can be changed into a prime (22204433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8652 + ... + 10920.

It is an arithmetic number, because the mean of its divisors is an integer number (1593540).

Almost surely, 2^22204434 is an apocalyptic number.

22204434 is an abundant number, since it is smaller than the sum of its proper divisors (28788846).

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

22204434 is a wasteful number, since it uses less digits than its factorization.

22204434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 22204434 is about 4712.1581043085. The cubic root of 22204434 is about 281.0691859040.

Adding to 22204434 its reverse (43440222), we get a palindrome (65644656).

The spelling of 22204434 in words is "twenty-two million, two hundred four thousand, four hundred thirty-four".