6814140 has 36 divisors (see below), whose sum is σ = 19136376. Its totient is φ = 1811712.

The previous prime is 6814139. The next prime is 6814147. The reversal of 6814140 is 414186.

It is a self number, because there is not a number n which added to its sum of digits gives 6814140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6814147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20052 + ... + 20388.

It is an arithmetic number, because the mean of its divisors is an integer number (531566).

Almost surely, 2^6814140 is an apocalyptic number.

6814140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6814140 is an abundant number, since it is smaller than the sum of its proper divisors (12322236).

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

6814140 is a wasteful number, since it uses less digits than its factorization.

6814140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 6814140 is about 2610.3907753438. The cubic root of 6814140 is about 189.5848739023.

The spelling of 6814140 in words is "six million, eight hundred fourteen thousand, one hundred forty".