204104144 has 20 divisors (see below), whose sum is σ = 404649696. Its totient is φ = 99678432.

The previous prime is 204104143. The next prime is 204104149. The reversal of 204104144 is 441401402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204104141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147644 + ... + 149019.

Almost surely, 2^204104144 is an apocalyptic number.

It is an amenable number.

204104144 is a deficient number, since it is larger than the sum of its proper divisors (200545552).

204104144 is a wasteful number, since it uses less digits than its factorization.

204104144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296714 (or 296708 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 204104144 is about 14286.5021611310. The cubic root of 204104144 is about 588.7766896933.

Adding to 204104144 its reverse (441401402), we get a palindrome (645505546).

The spelling of 204104144 in words is "two hundred four million, one hundred four thousand, one hundred forty-four".