204400330 has 16 divisors (see below), whose sum is σ = 374863464. Its totient is φ = 80217280.

The previous prime is 204400319. The next prime is 204400373. The reversal of 204400330 is 33004402.

It can be written as a sum of positive squares in 4 ways, for example, as 204118369 + 281961 = 14287^2 + 531^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192301 + ... + 193360.

Almost surely, 2^204400330 is an apocalyptic number.

204400330 is a deficient number, since it is larger than the sum of its proper divisors (170463134).

204400330 is a wasteful number, since it uses less digits than its factorization.

204400330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385721.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 204400330 is about 14296.8643415261. The cubic root of 204400330 is about 589.0613533997.

Adding to 204400330 its reverse (33004402), we get a palindrome (237404732).

The spelling of 204400330 in words is "two hundred four million, four hundred thousand, three hundred thirty".