204612212 has 48 divisors (see below), whose sum is σ = 417231360. Its totient is φ = 85992192.

The previous prime is 204612179. The next prime is 204612217. The reversal of 204612212 is 212216402.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204612217) 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 15 ways as a sum of consecutive naturals, for example, 515198 + ... + 515594.

It is an arithmetic number, because the mean of its divisors is an integer number (8692320).

Almost surely, 2^204612212 is an apocalyptic number.

It is an amenable number.

204612212 is an abundant number, since it is smaller than the sum of its proper divisors (212619148).

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

204612212 is a wasteful number, since it uses less digits than its factorization.

204612212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 204612212 is about 14304.2725085899. The cubic root of 204612212 is about 589.2648240364.

Adding to 204612212 its reverse (212216402), we get a palindrome (416828614).

The spelling of 204612212 in words is "two hundred four million, six hundred twelve thousand, two hundred twelve".