320643060 has 24 divisors (see below), whose sum is σ = 897800736. Its totient is φ = 85504800.

The previous prime is 320643049. The next prime is 320643061. The reversal of 320643060 is 60346023.

It is a self number, because there is not a number n which added to its sum of digits gives 320643060.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320643061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671966 + ... + 2672085.

It is an arithmetic number, because the mean of its divisors is an integer number (37408364).

Almost surely, 2^320643060 is an apocalyptic number.

320643060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320643060 is an abundant number, since it is smaller than the sum of its proper divisors (577157676).

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

320643060 is a wasteful number, since it uses less digits than its factorization.

320643060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5344063 (or 5344061 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 320643060 is about 17906.5088724743. The cubic root of 320643060 is about 684.4482459083.

Adding to 320643060 its reverse (60346023), we get a palindrome (380989083).

The spelling of 320643060 in words is "three hundred twenty million, six hundred forty-three thousand, sixty".