680672272 has 40 divisors (see below), whose sum is σ = 1513841600. Its totient is φ = 290431872.

The previous prime is 680672249. The next prime is 680672309. The reversal of 680672272 is 272276086.

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, 12379 + ... + 38917.

It is an arithmetic number, because the mean of its divisors is an integer number (37846040).

Almost surely, 2^680672272 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 680672272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756920800).

680672272 is an abundant number, since it is smaller than the sum of its proper divisors (833169328).

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

680672272 is a wasteful number, since it uses less digits than its factorization.

680672272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26783 (or 26777 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 680672272 is about 26089.6966636257. The cubic root of 680672272 is about 879.6556297180.

The spelling of 680672272 in words is "six hundred eighty million, six hundred seventy-two thousand, two hundred seventy-two".