320369346 has 96 divisors (see below), whose sum is σ = 798999552. Its totient is φ = 91824480.

The previous prime is 320369341. The next prime is 320369353. The reversal of 320369346 is 643963023.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 320369346.

It is not an unprimeable number, because it can be changed into a prime (320369341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 468721 + ... + 469403.

It is an arithmetic number, because the mean of its divisors is an integer number (8322912).

Almost surely, 2^320369346 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320369346, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (399499776).

320369346 is an abundant number, since it is smaller than the sum of its proper divisors (478630206).

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

320369346 is a wasteful number, since it uses less digits than its factorization.

320369346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 36.

The square root of 320369346 is about 17898.8643773844. The cubic root of 320369346 is about 684.2534328137.

The spelling of 320369346 in words is "three hundred twenty million, three hundred sixty-nine thousand, three hundred forty-six".