680426938 has 16 divisors (see below), whose sum is σ = 1095902784. Its totient is φ = 315689920.

The previous prime is 680426909. The next prime is 680426987. The reversal of 680426938 is 839624086.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138520 + ... + 143347.

It is an arithmetic number, because the mean of its divisors is an integer number (68493924).

Almost surely, 2^680426938 is an apocalyptic number.

680426938 is a deficient number, since it is larger than the sum of its proper divisors (415475846).

680426938 is a wasteful number, since it uses less digits than its factorization.

680426938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281957.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 680426938 is about 26084.9944987535. The cubic root of 680426938 is about 879.5499325632.

The spelling of 680426938 in words is "six hundred eighty million, four hundred twenty-six thousand, nine hundred thirty-eight".