6799140 has 72 divisors (see below), whose sum is σ = 21403200. Its totient is φ = 1811808.

The previous prime is 6799139. The next prime is 6799141. The reversal of 6799140 is 419976.

It is an interprime number because it is at equal distance from previous prime (6799139) and next prime (6799141).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6799095 and 6799104.

It is not an unprimeable number, because it can be changed into a prime (6799141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4161 + ... + 5559.

Almost surely, 2^6799140 is an apocalyptic number.

6799140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6799140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10701600).

6799140 is an abundant number, since it is smaller than the sum of its proper divisors (14604060).

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

6799140 is a wasteful number, since it uses less digits than its factorization.

6799140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423 (or 1409 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 6799140 is about 2607.5160593945. The cubic root of 6799140 is about 189.4456603290.

The spelling of 6799140 in words is "six million, seven hundred ninety-nine thousand, one hundred forty".