680044000 has 96 divisors (see below), whose sum is σ = 1681295616. Its totient is φ = 270323200.

The previous prime is 680043977. The next prime is 680044019. The reversal of 680044000 is 440086.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 787569 + ... + 788431.

It is an arithmetic number, because the mean of its divisors is an integer number (17513496).

Almost surely, 2^680044000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680044000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840647808).

680044000 is an abundant number, since it is smaller than the sum of its proper divisors (1001251616).

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

680044000 is a wasteful number, since it uses less digits than its factorization.

680044000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1067 counting only the distinct ones).

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

The square root of 680044000 is about 26077.6532686513. The cubic root of 680044000 is about 879.3849007388.

Adding to 680044000 its reverse (440086), we get a palindrome (680484086).

The spelling of 680044000 in words is "six hundred eighty million, forty-four thousand".