680342 has 16 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 310080.

The previous prime is 680341. The next prime is 680347. The reversal of 680342 is 243086.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 680342.

It is not an unprimeable number, because it can be changed into a prime (680341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3467 + ... + 3657.

It is an arithmetic number, because the mean of its divisors is an integer number (69552).

2⁶⁸⁰³⁴² is an apocalyptic number.

680342 is a deficient number, since it is larger than the sum of its proper divisors (432490).

680342 is a wasteful number, since it uses less digits than its factorization.

680342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 680342 is about 824.8284670160. The cubic root of 680342 is about 87.9513332836.

The spelling of 680342 in words is "six hundred eighty thousand, three hundred forty-two".