680044 has 12 divisors (see below), whose sum is σ = 1197504. Its totient is φ = 337904.

The previous prime is 680039. The next prime is 680059. The reversal of 680044 is 440086.

It is a junction number, because it is equal to n+sod(n) for n = 679997 and 680024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (99792).

2⁶⁸⁰⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

680044 is a deficient number, since it is larger than the sum of its proper divisors (517460).

680044 is a wasteful number, since it uses less digits than its factorization.

680044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 680044 is about 824.6478036107. The cubic root of 680044 is about 87.9384900739.

The spelling of 680044 in words is "six hundred eighty thousand, forty-four".