6880140 has 120 divisors (see below), whose sum is σ = 22442112. Its totient is φ = 1762560.

The previous prime is 6880127. The next prime is 6880141. The reversal of 6880140 is 410886.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (6880141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 50152 + ... + 50288.

Almost surely, 2^6880140 is an apocalyptic number.

6880140 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 6880140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11221056).

6880140 is an abundant number, since it is smaller than the sum of its proper divisors (15561972).

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

6880140 is a wasteful number, since it uses less digits than its factorization.

6880140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 6880140 is about 2623.0020968348. The cubic root of 6880140 is about 190.1949983260.

It can be divided in two parts, 68 and 80140, that added together give a palindrome (80208).

The spelling of 6880140 in words is "six million, eight hundred eighty thousand, one hundred forty".