680289238 has 36 divisors (see below), whose sum is σ = 1107465660. Its totient is φ = 313346176.

The previous prime is 680289223. The next prime is 680289241. The reversal of 680289238 is 832982086.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1623393 + ... + 1623811.

It is an arithmetic number, because the mean of its divisors is an integer number (30762935).

Almost surely, 2^680289238 is an apocalyptic number.

680289238 is a deficient number, since it is larger than the sum of its proper divisors (427176422).

680289238 is a wasteful number, since it uses less digits than its factorization.

680289238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 680289238 is about 26082.3549166865. The cubic root of 680289238 is about 879.4905961917.

The spelling of 680289238 in words is "six hundred eighty million, two hundred eighty-nine thousand, two hundred thirty-eight".