6818742 has 60 divisors (see below), whose sum is σ = 17794260. Its totient is φ = 1945944.

The previous prime is 6818737. The next prime is 6818743. The reversal of 6818742 is 2478186.

It is a junction number, because it is equal to n+sod(n) for n = 6818697 and 6818706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6818743) 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 29 ways as a sum of consecutive naturals, for example, 7509 + ... + 8367.

It is an arithmetic number, because the mean of its divisors is an integer number (296571).

Almost surely, 2^6818742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6818742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8897130).

6818742 is an abundant number, since it is smaller than the sum of its proper divisors (10975518).

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

6818742 is a wasteful number, since it uses less digits than its factorization.

6818742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887 (or 871 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 6818742 is about 2611.2721037839. The cubic root of 6818742 is about 189.6275436671.

The spelling of 6818742 in words is "six million, eight hundred eighteen thousand, seven hundred forty-two".