6680940 has 48 divisors (see below), whose sum is σ = 21380352. Its totient is φ = 1526976.

The previous prime is 6680939. The next prime is 6680941. The reversal of 6680940 is 490866.

It is an interprime number because it is at equal distance from previous prime (6680939) and next prime (6680941).

It is not an unprimeable number, because it can be changed into a prime (6680941) 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 15 ways as a sum of consecutive naturals, for example, 7534 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (445424).

Almost surely, 2^6680940 is an apocalyptic number.

6680940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6680940 is an abundant number, since it is smaller than the sum of its proper divisors (14699412).

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

6680940 is a wasteful number, since it uses less digits than its factorization.

6680940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15926 (or 15924 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 6680940 is about 2584.7514387267. The cubic root of 6680940 is about 188.3414272415.

The spelling of 6680940 in words is "six million, six hundred eighty thousand, nine hundred forty".