7680840 has 32 divisors (see below), whose sum is σ = 23042880. Its totient is φ = 2048192.

The previous prime is 7680811. The next prime is 7680847. The reversal of 7680840 is 480867.

It is not an unprimeable number, because it can be changed into a prime (7680847) 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 7 ways as a sum of consecutive naturals, for example, 31884 + ... + 32123.

It is an arithmetic number, because the mean of its divisors is an integer number (720090).

Almost surely, 2^7680840 is an apocalyptic number.

It is an amenable number.

7680840 is an abundant number, since it is smaller than the sum of its proper divisors (15362040).

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

7680840 is a wasteful number, since it uses less digits than its factorization.

7680840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64021 (or 64017 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 7680840 is about 2771.4328424120. The cubic root of 7680840 is about 197.3041588028.

The spelling of 7680840 in words is "seven million, six hundred eighty thousand, eight hundred forty".