204104320404 has 48 divisors (see below), whose sum is σ = 476970633216. Its totient is φ = 67930962400.

The previous prime is 204104320393. The next prime is 204104320411. The reversal of 204104320404 is 404023401402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36899119 + ... + 36904649.

It is an arithmetic number, because the mean of its divisors is an integer number (9936888192).

Almost surely, 2^204104320404 is an apocalyptic number.

It is an amenable number.

204104320404 is an abundant number, since it is smaller than the sum of its proper divisors (272866312812).

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

204104320404 is a wasteful number, since it uses less digits than its factorization.

204104320404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9676 (or 9674 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 204104320404 its reverse (404023401402), we get a palindrome (608127721806).

The spelling of 204104320404 in words is "two hundred four billion, one hundred four million, three hundred twenty thousand, four hundred four".