204804403838 has 16 divisors (see below), whose sum is σ = 323186382000. Its totient is φ = 97195308672.

The previous prime is 204804403799. The next prime is 204804403873. The reversal of 204804403838 is 838304408402.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29921243 + ... + 29928086.

It is an arithmetic number, because the mean of its divisors is an integer number (20199148875).

Almost surely, 2^204804403838 is an apocalyptic number.

204804403838 is a deficient number, since it is larger than the sum of its proper divisors (118381978162).

204804403838 is a wasteful number, since it uses less digits than its factorization.

204804403838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59849419.

The product of its (nonzero) digits is 589824, while the sum is 44.

The spelling of 204804403838 in words is "two hundred four billion, eight hundred four million, four hundred three thousand, eight hundred thirty-eight".