6807140 has 24 divisors (see below), whose sum is σ = 15136632. Its totient is φ = 2562560.

The previous prime is 6807139. The next prime is 6807181. The reversal of 6807140 is 417086.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 6584356 = 472^2 + 2566^2 .

It is an Ulam number.

It is a congruent number.

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, 9671 + ... + 10350.

It is an arithmetic number, because the mean of its divisors is an integer number (630693).

Almost surely, 2^6807140 is an apocalyptic number.

It is an amenable number.

6807140 is an abundant number, since it is smaller than the sum of its proper divisors (8329492).

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

6807140 is a wasteful number, since it uses less digits than its factorization.

6807140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20047 (or 20045 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 6807140 is about 2609.0496354037. The cubic root of 6807140 is about 189.5199330192.

The spelling of 6807140 in words is "six million, eight hundred seven thousand, one hundred forty".