22013204 has 24 divisors (see below), whose sum is σ = 40240200. Its totient is φ = 10523520.

The previous prime is 22013203. The next prime is 22013209. The reversal of 22013204 is 40231022.

It can be written as a sum of positive squares in 4 ways, for example, as 372100 + 21641104 = 610^2 + 4652^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013203) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11774 + ... + 13514.

It is an arithmetic number, because the mean of its divisors is an integer number (1676675).

Almost surely, 2^22013204 is an apocalyptic number.

It is an amenable number.

22013204 is a deficient number, since it is larger than the sum of its proper divisors (18226996).

22013204 is a wasteful number, since it uses less digits than its factorization.

22013204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883 (or 1881 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 22013204 is about 4691.8230998195. The cubic root of 22013204 is about 280.2599796230.

Adding to 22013204 its reverse (40231022), we get a palindrome (62244226).

The spelling of 22013204 in words is "twenty-two million, thirteen thousand, two hundred four".