320334864 has 40 divisors (see below), whose sum is σ = 846782112. Its totient is φ = 104294400.

The previous prime is 320334857. The next prime is 320334881. The reversal of 320334864 is 468433023.

It is a super-2 number, since 2×320334864² = 205228850187796992, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 75537 + ... + 79664.

Almost surely, 2^320334864 is an apocalyptic number.

It is an amenable number.

320334864 is an abundant number, since it is smaller than the sum of its proper divisors (526447248).

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

320334864 is a wasteful number, since it uses less digits than its factorization.

320334864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155255 (or 155249 counting only the distinct ones).

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

The square root of 320334864 is about 17897.9011059956. The cubic root of 320334864 is about 684.2288827397.

Adding to 320334864 its reverse (468433023), we get a palindrome (788767887).

The spelling of 320334864 in words is "three hundred twenty million, three hundred thirty-four thousand, eight hundred sixty-four".