1680572 has 12 divisors (see below), whose sum is σ = 3036096. Its totient is φ = 813120.

The previous prime is 1680557. The next prime is 1680583. The reversal of 1680572 is 2750861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6653 + ... + 6900.

It is an arithmetic number, because the mean of its divisors is an integer number (253008).

2^1680572 is an apocalyptic number.

It is an amenable number.

1680572 is a deficient number, since it is larger than the sum of its proper divisors (1355524).

1680572 is a wasteful number, since it uses less digits than its factorization.

1680572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13588 (or 13586 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1680572 is about 1296.3687746934. The cubic root of 1680572 is about 118.8919292837.

The spelling of 1680572 in words is "one million, six hundred eighty thousand, five hundred seventy-two".