680486080 has 56 divisors (see below), whose sum is σ = 1651022352. Its totient is φ = 267052032.

The previous prime is 680486063. The next prime is 680486087. The reversal of 680486080 is 80684086.

It is a happy number.

It is a super-2 number, since 2×680486080² = 926122610147532800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (680486087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3102 + ... + 37021.

It is an arithmetic number, because the mean of its divisors is an integer number (29482542).

Almost surely, 2^680486080 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 680486080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825511176).

680486080 is an abundant number, since it is smaller than the sum of its proper divisors (970536272).

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

680486080 is a wasteful number, since it uses less digits than its factorization.

680486080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40193 (or 40183 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 680486080 is about 26086.1281143829. The cubic root of 680486080 is about 879.5754150126.

The spelling of 680486080 in words is "six hundred eighty million, four hundred eighty-six thousand, eighty".