6894040 has 16 divisors (see below), whose sum is σ = 15511680. Its totient is φ = 2757600.

The previous prime is 6894023. The next prime is 6894049. The reversal of 6894040 is 404986.

It is a junction number, because it is equal to n+sod(n) for n = 6893993 and 6894011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6894049) 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 3 ways as a sum of consecutive naturals, for example, 86136 + ... + 86215.

It is an arithmetic number, because the mean of its divisors is an integer number (969480).

Almost surely, 2^6894040 is an apocalyptic number.

It is an amenable number.

6894040 is an abundant number, since it is smaller than the sum of its proper divisors (8617640).

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

6894040 is a wasteful number, since it uses less digits than its factorization.

6894040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172362 (or 172358 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6894040 is about 2625.6503956163. The cubic root of 6894040 is about 190.3229963078.

The spelling of 6894040 in words is "six million, eight hundred ninety-four thousand, forty".