6818394 has 64 divisors (see below), whose sum is σ = 16174080. Its totient is φ = 1893120.

The previous prime is 6818363. The next prime is 6818401. The reversal of 6818394 is 4938186.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66147 + ... + 66249.

It is an arithmetic number, because the mean of its divisors is an integer number (252720).

Almost surely, 2^6818394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6818394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8087040).

6818394 is an abundant number, since it is smaller than the sum of its proper divisors (9355686).

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

6818394 is a wasteful number, since it uses less digits than its factorization.

6818394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195.

The product of its digits is 41472, while the sum is 39.

The square root of 6818394 is about 2611.2054687443. The cubic root of 6818394 is about 189.6243176807.

The spelling of 6818394 in words is "six million, eight hundred eighteen thousand, three hundred ninety-four".