320847912 has 256 divisors, whose sum is σ = 1128038400. Its totient is φ = 82080000.

The previous prime is 320847893. The next prime is 320847913. The reversal of 320847912 is 219748023.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320847913) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1679737 + ... + 1679927.

It is an arithmetic number, because the mean of its divisors is an integer number (4406400).

Almost surely, 2^320847912 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 320847912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (564019200).

320847912 is an abundant number, since it is smaller than the sum of its proper divisors (807190488).

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

320847912 is a wasteful number, since it uses less digits than its factorization.

320847912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 320847912 is about 17912.2280021219. The cubic root of 320847912 is about 684.5939746651.

The spelling of 320847912 in words is "three hundred twenty million, eight hundred forty-seven thousand, nine hundred twelve".