2321320 has 32 divisors (see below), whose sum is σ = 5274720. Its totient is φ = 919360.

The previous prime is 2321317. The next prime is 2321329. The reversal of 2321320 is 231232.

It is a happy number.

2321320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2321320.

It is not an unprimeable number, because it can be changed into a prime (2321329) by changing a digit.

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, 5019 + ... + 5461.

It is an arithmetic number, because the mean of its divisors is an integer number (164835).

2^2321320 is an apocalyptic number.

2321320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321320 is an abundant number, since it is smaller than the sum of its proper divisors (2953400).

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

2321320 is a wasteful number, since it uses less digits than its factorization.

2321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2321320 is about 1523.5878707840. The cubic root of 2321320 is about 132.4072211540.

Adding to 2321320 its reverse (231232), we get a palindrome (2552552).

The spelling of 2321320 in words is "two million, three hundred twenty-one thousand, three hundred twenty".