320341312 has 28 divisors (see below), whose sum is σ = 636253236. Its totient is φ = 160025600.

The previous prime is 320341289. The next prime is 320341313. The reversal of 320341312 is 213143023.

It can be written as a sum of positive squares in 2 ways, for example, as 38638656 + 281702656 = 6216^2 + 16784^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 320341312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320341313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120348 + ... + 122980.

Almost surely, 2^320341312 is an apocalyptic number.

320341312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

320341312 is a deficient number, since it is larger than the sum of its proper divisors (315911924).

320341312 is a wasteful number, since it uses less digits than its factorization.

320341312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4536 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 320341312 is about 17898.0812379428. The cubic root of 320341312 is about 684.2334736421.

Adding to 320341312 its reverse (213143023), we get a palindrome (533484335).

The spelling of 320341312 in words is "three hundred twenty million, three hundred forty-one thousand, three hundred twelve".