204288312 has 32 divisors (see below), whose sum is σ = 517190400. Its totient is φ = 67233504.

The previous prime is 204288307. The next prime is 204288317. The reversal of 204288312 is 213882402.

It is an interprime number because it is at equal distance from previous prime (204288307) and next prime (204288317).

It is a self number, because there is not a number n which added to its sum of digits gives 204288312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204288317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51978 + ... + 55769.

It is an arithmetic number, because the mean of its divisors is an integer number (16162200).

Almost surely, 2^204288312 is an apocalyptic number.

It is an amenable number.

204288312 is an abundant number, since it is smaller than the sum of its proper divisors (312902088).

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

204288312 is a wasteful number, since it uses less digits than its factorization.

204288312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107835 (or 107831 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 204288312 is about 14292.9462323203. The cubic root of 204288312 is about 588.9537255037.

The spelling of 204288312 in words is "two hundred four million, two hundred eighty-eight thousand, three hundred twelve".