204404004084 has 48 divisors (see below), whose sum is σ = 545333846400. Its totient is φ = 58373661696.

The previous prime is 204404004083. The next prime is 204404004097. The reversal of 204404004084 is 480400404402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204404004083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392649 + ... + 750320.

It is an arithmetic number, because the mean of its divisors is an integer number (11361121800).

Almost surely, 2^204404004084 is an apocalyptic number.

It is an amenable number.

204404004084 is an abundant number, since it is smaller than the sum of its proper divisors (340929842316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204404004084 is a wasteful number, since it uses less digits than its factorization.

204404004084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1145112 (or 1145110 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 204404004084 its reverse (480400404402), we get a palindrome (684804408486).

The spelling of 204404004084 in words is "two hundred four billion, four hundred four million, four thousand, eighty-four".