320047260 has 48 divisors (see below), whose sum is σ = 965067936. Its totient is φ = 78780672.

The previous prime is 320047201. The next prime is 320047261. The reversal of 320047260 is 62740023.

It is a self number, because there is not a number n which added to its sum of digits gives 320047260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320047261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204379 + ... + 205938.

It is an arithmetic number, because the mean of its divisors is an integer number (20105582).

Almost surely, 2^320047260 is an apocalyptic number.

320047260 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320047260 is an abundant number, since it is smaller than the sum of its proper divisors (645020676).

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

320047260 is a wasteful number, since it uses less digits than its factorization.

320047260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410342 (or 410340 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 320047260 is about 17889.8647283874. The cubic root of 320047260 is about 684.0240492895.

Adding to 320047260 its reverse (62740023), we get a palindrome (382787283).

The spelling of 320047260 in words is "three hundred twenty million, forty-seven thousand, two hundred sixty".