680355740 has 24 divisors (see below), whose sum is σ = 1429249920. Its totient is φ = 272046528.

The previous prime is 680355737. The next prime is 680355749. The reversal of 680355740 is 47553086.

680355740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 680355694 and 680355703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680355749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89114 + ... + 96446.

It is an arithmetic number, because the mean of its divisors is an integer number (59552080).

Almost surely, 2^680355740 is an apocalyptic number.

It is an amenable number.

680355740 is an abundant number, since it is smaller than the sum of its proper divisors (748894180).

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

680355740 is a wasteful number, since it uses less digits than its factorization.

680355740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11981 (or 11979 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 680355740 is about 26083.6297320753. The cubic root of 680355740 is about 879.5192535993.

The spelling of 680355740 in words is "six hundred eighty million, three hundred fifty-five thousand, seven hundred forty".