6730320 has 80 divisors (see below), whose sum is σ = 21605760. Its totient is φ = 1731072.

The previous prime is 6730319. The next prime is 6730327. The reversal of 6730320 is 230376.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6730327) 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, 6477 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (270072).

Almost surely, 2^6730320 is an apocalyptic number.

6730320 is a gapful number since it is divisible by the number (60) 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 6730320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10802880).

6730320 is an abundant number, since it is smaller than the sum of its proper divisors (14875440).

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

6730320 is a wasteful number, since it uses less digits than its factorization.

6730320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012 (or 1006 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 6730320 is about 2594.2860289490. The cubic root of 6730320 is about 188.8043102052.

Adding to 6730320 its reverse (230376), we get a palindrome (6960696).

The spelling of 6730320 in words is "six million, seven hundred thirty thousand, three hundred twenty".