204040431304 has 16 divisors (see below), whose sum is σ = 405080268300. Its totient is φ = 96019026432.

The previous prime is 204040431271. The next prime is 204040431313. The reversal of 204040431304 is 403134040402.

It can be written as a sum of positive squares in 2 ways, for example, as 197759868804 + 6280562500 = 444702^2 + 79250^2 .

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, 750148509 + ... + 750148780.

Almost surely, 2^204040431304 is an apocalyptic number.

It is an amenable number.

204040431304 is a deficient number, since it is larger than the sum of its proper divisors (201039836996).

204040431304 is a wasteful number, since it uses less digits than its factorization.

204040431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500297312 (or 1500297308 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 204040431304 its reverse (403134040402), we get a palindrome (607174471706).

The spelling of 204040431304 in words is "two hundred four billion, forty million, four hundred thirty-one thousand, three hundred four".