204043312 has 20 divisors (see below), whose sum is σ = 431273736. Its totient is φ = 92746880.

The previous prime is 204043297. The next prime is 204043319. The reversal of 204043312 is 213340402.

It is a self number, because there is not a number n which added to its sum of digits gives 204043312.

It is not an unprimeable number, because it can be changed into a prime (204043319) 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, 579493 + ... + 579844.

Almost surely, 2^204043312 is an apocalyptic number.

204043312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

204043312 is an abundant number, since it is smaller than the sum of its proper divisors (227230424).

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

204043312 is a wasteful number, since it uses less digits than its factorization.

204043312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159356 (or 1159350 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 204043312 is about 14284.3729998905. The cubic root of 204043312 is about 588.7181901094.

Adding to 204043312 its reverse (213340402), we get a palindrome (417383714).

It can be divided in two parts, 20404 and 3312, that added together give a square (23716 = 154²).

The spelling of 204043312 in words is "two hundred four million, forty-three thousand, three hundred twelve".