680380 has 12 divisors (see below), whose sum is σ = 1428840. Its totient is φ = 272144.

The previous prime is 680377. The next prime is 680387. The reversal of 680380 is 83086.

680380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16990 + ... + 17029.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

2⁶⁸⁰³⁸⁰ is an apocalyptic number.

It is an amenable number.

680380 is an abundant number, since it is smaller than the sum of its proper divisors (748460).

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

680380 is a wasteful number, since it uses less digits than its factorization.

680380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34028 (or 34026 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 680380 is about 824.8515017868. The cubic root of 680380 is about 87.9529707387.

The spelling of 680380 in words is "six hundred eighty thousand, three hundred eighty".