6698140 has 48 divisors (see below), whose sum is σ = 14696640. Its totient is φ = 2562560.

The previous prime is 6698099. The next prime is 6698143. The reversal of 6698140 is 418966.

It is a junction number, because it is equal to n+sod(n) for n = 6698096 and 6698105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698143) 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 15 ways as a sum of consecutive naturals, for example, 75216 + ... + 75304.

It is an arithmetic number, because the mean of its divisors is an integer number (306180).

Almost surely, 2^6698140 is an apocalyptic number.

It is an amenable number.

6698140 is an abundant number, since it is smaller than the sum of its proper divisors (7998500).

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

6698140 is a wasteful number, since it uses less digits than its factorization.

6698140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6698140 is about 2588.0765058244. The cubic root of 6698140 is about 188.5029163196.

The spelling of 6698140 in words is "six million, six hundred ninety-eight thousand, one hundred forty".