680613740 has 24 divisors (see below), whose sum is σ = 1433285280. Its totient is φ = 271484288.

The previous prime is 680613733. The next prime is 680613749. The reversal of 680613740 is 47316086.

It is a self number, because there is not a number n which added to its sum of digits gives 680613740.

It is not an unprimeable number, because it can be changed into a prime (680613749) 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, 40217 + ... + 54576.

It is an arithmetic number, because the mean of its divisors is an integer number (59720220).

Almost surely, 2^680613740 is an apocalyptic number.

It is an amenable number.

680613740 is an abundant number, since it is smaller than the sum of its proper divisors (752671540).

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

680613740 is a wasteful number, since it uses less digits than its factorization.

680613740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95161 (or 95159 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 680613740 is about 26088.5748940029. The cubic root of 680613740 is about 879.6304147057.

The spelling of 680613740 in words is "six hundred eighty million, six hundred thirteen thousand, seven hundred forty".