204204002004 has 36 divisors (see below), whose sum is σ = 516197281600. Its totient is φ = 68066030160.

The previous prime is 204204001993. The next prime is 204204002017. The reversal of 204204002004 is 400200402402.

204204002004 is a `hidden beast` number, since 2 + 0 + 420 + 40 + 0 + 200 + 4 = 666.

204204002004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1721397 + ... + 1836195.

Almost surely, 2^204204002004 is an apocalyptic number.

It is an amenable number.

204204002004 is an abundant number, since it is smaller than the sum of its proper divisors (311993279596).

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

204204002004 is a wasteful number, since it uses less digits than its factorization.

204204002004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164220 (or 164215 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 204204002004 its reverse (400200402402), we get a palindrome (604404404406).

The spelling of 204204002004 in words is "two hundred four billion, two hundred four million, two thousand, four".