680844404 has 12 divisors (see below), whose sum is σ = 1254187200. Its totient is φ = 322505208.

The previous prime is 680844403. The next prime is 680844427. The reversal of 680844404 is 404448086.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680844403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4479164 + ... + 4479315.

It is an arithmetic number, because the mean of its divisors is an integer number (104515600).

Almost surely, 2^680844404 is an apocalyptic number.

It is an amenable number.

680844404 is a deficient number, since it is larger than the sum of its proper divisors (573342796).

680844404 is a wasteful number, since it uses less digits than its factorization.

680844404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958502 (or 8958500 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 680844404 is about 26092.9953052539. The cubic root of 680844404 is about 879.7297741226.

The spelling of 680844404 in words is "six hundred eighty million, eight hundred forty-four thousand, four hundred four".