204013312 has 36 divisors (see below), whose sum is σ = 424947600. Its totient is φ = 97568768.

The previous prime is 204013297. The next prime is 204013331. The reversal of 204013312 is 213310402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11437 + ... + 23212.

It is an arithmetic number, because the mean of its divisors is an integer number (11804100).

Almost surely, 2^204013312 is an apocalyptic number.

It is an amenable number.

204013312 is an abundant number, since it is smaller than the sum of its proper divisors (220934288).

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

204013312 is an equidigital number, since it uses as much as digits as its factorization.

204013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34688 (or 34674 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 204013312 is about 14283.3228626955. The cubic root of 204013312 is about 588.6893360863.

Adding to 204013312 its reverse (213310402), we get a palindrome (417323714).

The spelling of 204013312 in words is "two hundred four million, thirteen thousand, three hundred twelve".