680001320 has 32 divisors (see below), whose sum is σ = 1540149120. Its totient is φ = 270196800.

The previous prime is 680001319. The next prime is 680001341. The reversal of 680001320 is 23100086.

It is a Harshad number since it is a multiple of its sum of digits (20).

680001320 is a modest number, since divided by 1320 gives 680 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 680001292 and 680001301.

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, 50252 + ... + 62331.

It is an arithmetic number, because the mean of its divisors is an integer number (48129660).

Almost surely, 2^680001320 is an apocalyptic number.

It is an amenable number.

680001320 is an abundant number, since it is smaller than the sum of its proper divisors (860147800).

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

680001320 is a wasteful number, since it uses less digits than its factorization.

680001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112745 (or 112741 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 680001320 is about 26076.8349306429. The cubic root of 680001320 is about 879.3665034328.

The spelling of 680001320 in words is "six hundred eighty million, one thousand, three hundred twenty".