2160320 has 56 divisors (see below), whose sum is σ = 5297424. Its totient is φ = 838656.

The previous prime is 2160311. The next prime is 2160337. The reversal of 2160320 is 230612.

It is a junction number, because it is equal to n+sod(n) for n = 2160295 and 2160304.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13682 + ... + 13838.

2^2160320 is an apocalyptic number.

2160320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2160320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2648712).

2160320 is an abundant number, since it is smaller than the sum of its proper divisors (3137104).

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

2160320 is a wasteful number, since it uses less digits than its factorization.

2160320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2160320 is about 1469.8027078489. The cubic root of 2160320 is about 129.2724645969.

Adding to 2160320 its reverse (230612), we get a palindrome (2390932).

The spelling of 2160320 in words is "two million, one hundred sixty thousand, three hundred twenty".