320386344 has 32 divisors (see below), whose sum is σ = 809229120. Its totient is φ = 105693696.

The previous prime is 320386321. The next prime is 320386349. The reversal of 320386344 is 443683023.

It is not an unprimeable number, because it can be changed into a prime (320386349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66484 + ... + 71139.

It is an arithmetic number, because the mean of its divisors is an integer number (25288410).

Almost surely, 2^320386344 is an apocalyptic number.

It is an amenable number.

320386344 is an abundant number, since it is smaller than the sum of its proper divisors (488842776).

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

320386344 is a wasteful number, since it uses less digits than its factorization.

320386344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137729 (or 137725 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 320386344 is about 17899.3392056802. The cubic root of 320386344 is about 684.2655341943.

The spelling of 320386344 in words is "three hundred twenty million, three hundred eighty-six thousand, three hundred forty-four".