320704340 has 48 divisors (see below), whose sum is σ = 736997184. Its totient is φ = 116256000.

The previous prime is 320704339. The next prime is 320704343. The reversal of 320704340 is 43407023.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320704343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74240 + ... + 78440.

It is an arithmetic number, because the mean of its divisors is an integer number (15354108).

Almost surely, 2^320704340 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 320704340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368498592).

320704340 is an abundant number, since it is smaller than the sum of its proper divisors (416292844).

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

320704340 is a wasteful number, since it uses less digits than its factorization.

320704340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568 (or 4566 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 320704340 is about 17908.2199003698. The cubic root of 320704340 is about 684.4918461210.

The spelling of 320704340 in words is "three hundred twenty million, seven hundred four thousand, three hundred forty".