680796420 has 24 divisors (see below), whose sum is σ = 1906230144. Its totient is φ = 181545696.

The previous prime is 680796419. The next prime is 680796427. The reversal of 680796420 is 24697086.

It is not an unprimeable number, because it can be changed into a prime (680796427) 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, 5673244 + ... + 5673363.

It is an arithmetic number, because the mean of its divisors is an integer number (79426256).

Almost surely, 2^680796420 is an apocalyptic number.

680796420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

680796420 is an abundant number, since it is smaller than the sum of its proper divisors (1225433724).

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

680796420 is a wasteful number, since it uses less digits than its factorization.

680796420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11346619 (or 11346617 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 680796420 is about 26092.0758085669. The cubic root of 680796420 is about 879.7091066764.

The spelling of 680796420 in words is "six hundred eighty million, seven hundred ninety-six thousand, four hundred twenty".