204000420404 has 24 divisors (see below), whose sum is σ = 389495107008. Its totient is φ = 92717997440.

The previous prime is 204000420397. The next prime is 204000420467. The reversal of 204000420404 is 404024000402.

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, 208652 + ... + 671964.

It is an arithmetic number, because the mean of its divisors is an integer number (16228962792).

Almost surely, 2^204000420404 is an apocalyptic number.

It is an amenable number.

204000420404 is a deficient number, since it is larger than the sum of its proper divisors (185494686604).

204000420404 is a wasteful number, since it uses less digits than its factorization.

204000420404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473335 (or 473333 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 204000420404 its reverse (404024000402), we get a palindrome (608024420806).

The spelling of 204000420404 in words is "two hundred four billion, four hundred twenty thousand, four hundred four".