205034312 has 16 divisors (see below), whose sum is σ = 439359360. Its totient is φ = 87871824.

The previous prime is 205034311. The next prime is 205034329. The reversal of 205034312 is 213430502.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (205034311) 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, 1830608 + ... + 1830719.

It is an arithmetic number, because the mean of its divisors is an integer number (27459960).

Almost surely, 2^205034312 is an apocalyptic number.

It is an amenable number.

205034312 is an abundant number, since it is smaller than the sum of its proper divisors (234325048).

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

205034312 is a wasteful number, since it uses less digits than its factorization.

205034312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661340 (or 3661336 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 205034312 is about 14319.0192401575. The cubic root of 205034312 is about 589.6697491045.

Adding to 205034312 its reverse (213430502), we get a palindrome (418464814).

The spelling of 205034312 in words is "two hundred five million, thirty-four thousand, three hundred twelve".