320504334 has 16 divisors (see below), whose sum is σ = 648732672. Its totient is φ = 105547448.

The previous prime is 320504311. The next prime is 320504347. The reversal of 320504334 is 433405023.

It is a super-2 number, since 2×320504334² = 205446056225567112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321294 + ... + 322289.

It is an arithmetic number, because the mean of its divisors is an integer number (40545792).

Almost surely, 2^320504334 is an apocalyptic number.

320504334 is an abundant number, since it is smaller than the sum of its proper divisors (328228338).

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

320504334 is a wasteful number, since it uses less digits than its factorization.

320504334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643671.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 320504334 is about 17902.6348340126. The cubic root of 320504334 is about 684.3495229814.

Adding to 320504334 its reverse (433405023), we get a palindrome (753909357).

The spelling of 320504334 in words is "three hundred twenty million, five hundred four thousand, three hundred thirty-four".