320010340 has 48 divisors (see below), whose sum is σ = 726005952. Its totient is φ = 117783936.

The previous prime is 320010323. The next prime is 320010347. The reversal of 320010340 is 43010023.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 320010340.

It is not an unprimeable number, because it can be changed into a prime (320010347) 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, 88447 + ... + 91993.

It is an arithmetic number, because the mean of its divisors is an integer number (15125124).

Almost surely, 2^320010340 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 320010340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363002976).

320010340 is an abundant number, since it is smaller than the sum of its proper divisors (405995612).

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

320010340 is a wasteful number, since it uses less digits than its factorization.

320010340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3916 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320010340 is about 17888.8328294498. The cubic root of 320010340 is about 683.9977457377.

Adding to 320010340 its reverse (43010023), we get a palindrome (363020363).

The spelling of 320010340 in words is "three hundred twenty million, ten thousand, three hundred forty".