1680068 has 12 divisors (see below), whose sum is σ = 3166380. Its totient is φ = 775392.

The previous prime is 1680023. The next prime is 1680071. The reversal of 1680068 is 8600861.

It can be written as a sum of positive squares in 2 ways, for example, as 937024 + 743044 = 968^2 + 862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1680068.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16103 + ... + 16206.

It is an arithmetic number, because the mean of its divisors is an integer number (263865).

2^1680068 is an apocalyptic number.

It is an amenable number.

1680068 is a deficient number, since it is larger than the sum of its proper divisors (1486312).

1680068 is a wasteful number, since it uses less digits than its factorization.

1680068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32326 (or 32324 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 1680068 is about 1296.1743709856. The cubic root of 1680068 is about 118.8800429491.

The spelling of 1680068 in words is "one million, six hundred eighty thousand, sixty-eight".