204430220 has 12 divisors (see below), whose sum is σ = 429303504. Its totient is φ = 81772080.

The previous prime is 204430207. The next prime is 204430231. The reversal of 204430220 is 22034402.

204430220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5110736 + ... + 5110775.

It is an arithmetic number, because the mean of its divisors is an integer number (35775292).

Almost surely, 2^204430220 is an apocalyptic number.

204430220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204430220 is an abundant number, since it is smaller than the sum of its proper divisors (224873284).

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

204430220 is a wasteful number, since it uses less digits than its factorization.

204430220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10221520 (or 10221518 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 204430220 is about 14297.9096374260. The cubic root of 204430220 is about 589.0900653326.

Adding to 204430220 its reverse (22034402), we get a palindrome (226464622).

The spelling of 204430220 in words is "two hundred four million, four hundred thirty thousand, two hundred twenty".