680874740 has 96 divisors (see below), whose sum is σ = 1807540224. Its totient is φ = 209640960.

The previous prime is 680874739. The next prime is 680874743. The reversal of 680874740 is 47478086.

It is a junction number, because it is equal to n+sod(n) for n = 680874691 and 680874700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680874743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62285 + ... + 72395.

It is an arithmetic number, because the mean of its divisors is an integer number (18828544).

Almost surely, 2^680874740 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 680874740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903770112).

680874740 is an abundant number, since it is smaller than the sum of its proper divisors (1126665484).

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

680874740 is a wasteful number, since it uses less digits than its factorization.

680874740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10177 (or 10175 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 44.

The square root of 680874740 is about 26093.5766042143. The cubic root of 680874740 is about 879.7428398029.

It can be divided in two parts, 68087 and 4740, that added together give a palindrome (72827).

The spelling of 680874740 in words is "six hundred eighty million, eight hundred seventy-four thousand, seven hundred forty".