6684140 has 24 divisors (see below), whose sum is σ = 14137200. Its totient is φ = 2654528.

The previous prime is 6684133. The next prime is 6684151. The reversal of 6684140 is 414866.

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, 1859 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (589050).

Almost surely, 2^6684140 is an apocalyptic number.

It is an amenable number.

6684140 is an abundant number, since it is smaller than the sum of its proper divisors (7453060).

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

6684140 is a wasteful number, since it uses less digits than its factorization.

6684140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401 (or 2399 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 6684140 is about 2585.3703796555. The cubic root of 6684140 is about 188.3714926898.

The spelling of 6684140 in words is "six million, six hundred eighty-four thousand, one hundred forty".