1680532 has 24 divisors (see below), whose sum is σ = 3435264. Its totient is φ = 704352.

The previous prime is 1680529. The next prime is 1680551. The reversal of 1680532 is 2350861.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1680497 and 1680506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678 + ... + 1954.

It is an arithmetic number, because the mean of its divisors is an integer number (143136).

2^1680532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1680532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1717632).

1680532 is an abundant number, since it is smaller than the sum of its proper divisors (1754732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1680532 is a wasteful number, since it uses less digits than its factorization.

1680532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1333 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1680532 is about 1296.3533468927. The cubic root of 1680532 is about 118.8909860106.

The spelling of 1680532 in words is "one million, six hundred eighty thousand, five hundred thirty-two".