204430330 has 32 divisors (see below), whose sum is σ = 400755600. Its totient is φ = 74629632.

The previous prime is 204430273. The next prime is 204430349. The reversal of 204430330 is 33034402.

It can be written as a sum of positive squares in 8 ways, for example, as 7392961 + 197037369 = 2719^2 + 14037^2 .

It is a junction number, because it is equal to n+sod(n) for n = 204430298 and 204430307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2736 + ... + 20404.

Almost surely, 2^204430330 is an apocalyptic number.

204430330 is a deficient number, since it is larger than the sum of its proper divisors (196325270).

204430330 is a wasteful number, since it uses less digits than its factorization.

204430330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17778.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 204430330 is about 14297.9134841417. The cubic root of 204430330 is about 589.0901709920.

Adding to 204430330 its reverse (33034402), we get a palindrome (237464732).

The spelling of 204430330 in words is "two hundred four million, four hundred thirty thousand, three hundred thirty".