680000280 has 64 divisors (see below), whose sum is σ = 2087458560. Its totient is φ = 177115008.

The previous prime is 680000273. The next prime is 680000281. The reversal of 680000280 is 82000086.

680000280 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

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 680000280.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680000281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60732 + ... + 71051.

It is an arithmetic number, because the mean of its divisors is an integer number (32616540).

Almost surely, 2^680000280 is an apocalyptic number.

680000280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680000280 is an abundant number, since it is smaller than the sum of its proper divisors (1407458280).

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

680000280 is a wasteful number, since it uses less digits than its factorization.

680000280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131840 (or 131836 counting only the distinct ones).

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

The square root of 680000280 is about 26076.8149895650. The cubic root of 680000280 is about 879.3660551289.

The spelling of 680000280 in words is "six hundred eighty million, two hundred eighty", and thus it is an aban number.