680280 has 32 divisors (see below), whose sum is σ = 2041200. Its totient is φ = 181376.

The previous prime is 680263. The next prime is 680291. The reversal of 680280 is 82086.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 680280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2715 + ... + 2954.

2⁶⁸⁰²⁸⁰ is an apocalyptic number.

680280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680280 is an abundant number, since it is smaller than the sum of its proper divisors (1360920).

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

680280 is a wasteful number, since it uses less digits than its factorization.

680280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 680280 is about 824.7908825878. The cubic root of 680280 is about 87.9486615154.

The spelling of 680280 in words is "six hundred eighty thousand, two hundred eighty".