680585742 has 24 divisors (see below), whose sum is σ = 1481223744. Its totient is φ = 225843264.

The previous prime is 680585729. The next prime is 680585753. The reversal of 680585742 is 247585086.

680585742 is a `hidden beast` number, since 68 + 0 + 585 + 7 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80763 + ... + 88790.

It is an arithmetic number, because the mean of its divisors is an integer number (61717656).

Almost surely, 2^680585742 is an apocalyptic number.

680585742 is an abundant number, since it is smaller than the sum of its proper divisors (800638002).

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

680585742 is a wasteful number, since it uses less digits than its factorization.

680585742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169784 (or 169781 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 680585742 is about 26088.0382934402. The cubic root of 680585742 is about 879.6183529303.

The spelling of 680585742 in words is "six hundred eighty million, five hundred eighty-five thousand, seven hundred forty-two".