204400234 has 4 divisors (see below), whose sum is σ = 306600354. Its totient is φ = 102200116.

The previous prime is 204400187. The next prime is 204400253. The reversal of 204400234 is 432004402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 182169009 + 22231225 = 13497^2 + 4715^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51100057 + ... + 51100060.

Almost surely, 2^204400234 is an apocalyptic number.

204400234 is a deficient number, since it is larger than the sum of its proper divisors (102200120).

204400234 is a wasteful number, since it uses less digits than its factorization.

204400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102200119.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204400234 is about 14296.8609841461. The cubic root of 204400234 is about 589.0612611789.

Adding to 204400234 its reverse (432004402), we get a palindrome (636404636).

The spelling of 204400234 in words is "two hundred four million, four hundred thousand, two hundred thirty-four".