680174020 has 24 divisors (see below), whose sum is σ = 1435624344. Its totient is φ = 270686976.

The previous prime is 680173933. The next prime is 680174021. The reversal of 680174020 is 20471086.

It can be written as a sum of positive squares in 4 ways, for example, as 132894784 + 547279236 = 11528^2 + 23394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 680174020.

It is not an unprimeable number, because it can be changed into a prime (680174021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82377 + ... + 90256.

It is an arithmetic number, because the mean of its divisors is an integer number (59817681).

Almost surely, 2^680174020 is an apocalyptic number.

It is an amenable number.

680174020 is an abundant number, since it is smaller than the sum of its proper divisors (755450324).

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

680174020 is a wasteful number, since it uses less digits than its factorization.

680174020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172839 (or 172837 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 680174020 is about 26080.1460885479. The cubic root of 680174020 is about 879.4409413963.

The spelling of 680174020 in words is "six hundred eighty million, one hundred seventy-four thousand, twenty".