320530116 has 48 divisors (see below), whose sum is σ = 785691648. Its totient is φ = 101508000.

The previous prime is 320530099. The next prime is 320530117. The reversal of 320530116 is 611035023.

It is a junction number, because it is equal to n+sod(n) for n = 320530092 and 320530101.

It is not an unprimeable number, because it can be changed into a prime (320530117) 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, 37831 + ... + 45521.

It is an arithmetic number, because the mean of its divisors is an integer number (16368576).

Almost surely, 2^320530116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320530116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392845824).

320530116 is an abundant number, since it is smaller than the sum of its proper divisors (465161532).

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

320530116 is a wasteful number, since it uses less digits than its factorization.

320530116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7872 (or 7870 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 320530116 is about 17903.3548811389. The cubic root of 320530116 is about 684.3678726307.

Adding to 320530116 its reverse (611035023), we get a palindrome (931565139).

The spelling of 320530116 in words is "three hundred twenty million, five hundred thirty thousand, one hundred sixteen".