680934442 has 16 divisors (see below), whose sum is σ = 1066890240. Its totient is φ = 325532592.

The previous prime is 680934431. The next prime is 680934479. The reversal of 680934442 is 244439086.

It is a junction number, because it is equal to n+sod(n) for n = 680934395 and 680934404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51018 + ... + 62965.

It is an arithmetic number, because the mean of its divisors is an integer number (66680640).

Almost surely, 2^680934442 is an apocalyptic number.

680934442 is a deficient number, since it is larger than the sum of its proper divisors (385955798).

680934442 is a wasteful number, since it uses less digits than its factorization.

680934442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114117.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 680934442 is about 26094.7205771589. The cubic root of 680934442 is about 879.7685522524.

The spelling of 680934442 in words is "six hundred eighty million, nine hundred thirty-four thousand, four hundred forty-two".