204005434 has 8 divisors (see below), whose sum is σ = 308418048. Its totient is φ = 101199420.

The previous prime is 204005429. The next prime is 204005437. The reversal of 204005434 is 434500402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204005437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401332 + ... + 401839.

It is an arithmetic number, because the mean of its divisors is an integer number (38552256).

Almost surely, 2^204005434 is an apocalyptic number.

204005434 is a deficient number, since it is larger than the sum of its proper divisors (104412614).

204005434 is a wasteful number, since it uses less digits than its factorization.

204005434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803300.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 204005434 is about 14283.0470838683. The cubic root of 204005434 is about 588.6817585509.

Adding to 204005434 its reverse (434500402), we get a palindrome (638505836).

The spelling of 204005434 in words is "two hundred four million, five thousand, four hundred thirty-four".