204430213 has 32 divisors (see below), whose sum is σ = 238436352. Its totient is φ = 173880000.

The previous prime is 204430207. The next prime is 204430231. The reversal of 204430213 is 312034402.

It is a cyclic number.

It is not a de Polignac number, because 204430213 - 2⁵ = 204430181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204430243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814338 + ... + 814588.

It is an arithmetic number, because the mean of its divisors is an integer number (7451136).

Almost surely, 2^204430213 is an apocalyptic number.

It is an amenable number.

204430213 is a deficient number, since it is larger than the sum of its proper divisors (34006139).

204430213 is a wasteful number, since it uses less digits than its factorization.

204430213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 204430213 is about 14297.9093926350. The cubic root of 204430213 is about 589.0900586088.

Adding to 204430213 its reverse (312034402), we get a palindrome (516464615).

The spelling of 204430213 in words is "two hundred four million, four hundred thirty thousand, two hundred thirteen".