6818720 has 48 divisors (see below), whose sum is σ = 16964640. Its totient is φ = 2582784.

The previous prime is 6818719. The next prime is 6818731. The reversal of 6818720 is 278186.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1919 + ... + 4161.

It is an arithmetic number, because the mean of its divisors is an integer number (353430).

Almost surely, 2^6818720 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 6818720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8482320).

6818720 is an abundant number, since it is smaller than the sum of its proper divisors (10145920).

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

6818720 is a wasteful number, since it uses less digits than its factorization.

6818720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2277 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 6818720 is about 2611.2678912743. The cubic root of 6818720 is about 189.6273397287.

The spelling of 6818720 in words is "six million, eight hundred eighteen thousand, seven hundred twenty".