204240412 has 12 divisors (see below), whose sum is σ = 358195936. Its totient is φ = 101898720.

The previous prime is 204240403. The next prime is 204240433. The reversal of 204240412 is 214042402.

It is a self number, because there is not a number n which added to its sum of digits gives 204240412.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53289 + ... + 56992.

Almost surely, 2^204240412 is an apocalyptic number.

It is an amenable number.

204240412 is a deficient number, since it is larger than the sum of its proper divisors (153955524).

204240412 is a wasteful number, since it uses less digits than its factorization.

204240412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110748 (or 110746 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 204240412 is about 14291.2704823609. The cubic root of 204240412 is about 588.9076907463.

Adding to 204240412 its reverse (214042402), we get a palindrome (418282814).

The spelling of 204240412 in words is "two hundred four million, two hundred forty thousand, four hundred twelve".