204012404 has 12 divisors (see below), whose sum is σ = 358053024. Its totient is φ = 101711544.

The previous prime is 204012397. The next prime is 204012407. The reversal of 204012404 is 404210402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204012407) 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, 72104 + ... + 74879.

It is an arithmetic number, because the mean of its divisors is an integer number (29837752).

Almost surely, 2^204012404 is an apocalyptic number.

It is an amenable number.

204012404 is a deficient number, since it is larger than the sum of its proper divisors (154040620).

204012404 is a wasteful number, since it uses less digits than its factorization.

204012404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147334 (or 147332 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 204012404 is about 14283.2910773393. The cubic root of 204012404 is about 588.6884627271.

Adding to 204012404 its reverse (404210402), we get a palindrome (608222806).

The spelling of 204012404 in words is "two hundred four million, twelve thousand, four hundred four".