204312210 has 32 divisors (see below), whose sum is σ = 493938432. Its totient is φ = 54084480.

The previous prime is 204312209. The next prime is 204312217. The reversal of 204312210 is 12213402.

204312210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 204312210.

It is not an unprimeable number, because it can be changed into a prime (204312217) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20746 + ... + 28965.

It is an arithmetic number, because the mean of its divisors is an integer number (15435576).

Almost surely, 2^204312210 is an apocalyptic number.

204312210 is an abundant number, since it is smaller than the sum of its proper divisors (289626222).

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

204312210 is a wasteful number, since it uses less digits than its factorization.

204312210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49858.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204312210 is about 14293.7822146554. The cubic root of 204312210 is about 588.9766902166.

Adding to 204312210 its reverse (12213402), we get a palindrome (216525612).

The spelling of 204312210 in words is "two hundred four million, three hundred twelve thousand, two hundred ten".