204406042004 has 12 divisors (see below), whose sum is σ = 357752117184. Its totient is φ = 102191151384.

The previous prime is 204406041971. The next prime is 204406042007. The reversal of 204406042004 is 400240604402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204406042007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2928602 + ... + 2997585.

It is an arithmetic number, because the mean of its divisors is an integer number (29812676432).

Almost surely, 2^204406042004 is an apocalyptic number.

It is an amenable number.

204406042004 is a deficient number, since it is larger than the sum of its proper divisors (153346075180).

204406042004 is a wasteful number, since it uses less digits than its factorization.

204406042004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5934814 (or 5934812 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 204406042004 its reverse (400240604402), we get a palindrome (604646646406).

The spelling of 204406042004 in words is "two hundred four billion, four hundred six million, forty-two thousand, four".