680241204 has 18 divisors (see below), whose sum is σ = 1719498690. Its totient is φ = 226747056.

The previous prime is 680241181. The next prime is 680241239. The reversal of 680241204 is 402142086.

It can be written as a sum of positive squares in only one way, i.e., 674960400 + 5280804 = 25980^2 + 2298^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9447759 + ... + 9447830.

It is an arithmetic number, because the mean of its divisors is an integer number (95527705).

Almost surely, 2^680241204 is an apocalyptic number.

It is an amenable number.

680241204 is an abundant number, since it is smaller than the sum of its proper divisors (1039257486).

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

680241204 is a wasteful number, since it uses less digits than its factorization.

680241204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18895599 (or 18895594 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 680241204 is about 26081.4340863381. The cubic root of 680241204 is about 879.4698959546.

The spelling of 680241204 in words is "six hundred eighty million, two hundred forty-one thousand, two hundred four".