323040312 has 224 divisors, whose sum is σ = 1068691680. Its totient is φ = 89579520.

The previous prime is 323040203. The next prime is 323040317. The reversal of 323040312 is 213040323.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323040317) 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 55 ways as a sum of consecutive naturals, for example, 1673688 + ... + 1673880.

It is an arithmetic number, because the mean of its divisors is an integer number (4770945).

Almost surely, 2^323040312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323040312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534345840).

323040312 is an abundant number, since it is smaller than the sum of its proper divisors (745651368).

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

323040312 is a wasteful number, since it uses less digits than its factorization.

323040312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323040312 is about 17973.3222304615. The cubic root of 323040312 is about 686.1497461717.

Adding to 323040312 its reverse (213040323), we get a palindrome (536080635).

The spelling of 323040312 in words is "three hundred twenty-three million, forty thousand, three hundred twelve".