1680132 has 24 divisors (see below), whose sum is σ = 4127200. Its totient is φ = 530496.

The previous prime is 1680131. The next prime is 1680149. The reversal of 1680132 is 2310861.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1680099 and 1680108.

It is not an unprimeable number, because it can be changed into a prime (1680131) 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, 3457 + ... + 3912.

2^1680132 is an apocalyptic number.

1680132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1680132 is an abundant number, since it is smaller than the sum of its proper divisors (2447068).

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

1680132 is a wasteful number, since it uses less digits than its factorization.

1680132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7395 (or 7393 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1680132 is about 1296.1990587869. The cubic root of 1680132 is about 118.8815524567.

Adding to 1680132 its reverse (2310861), we get a palindrome (3990993).

The spelling of 1680132 in words is "one million, six hundred eighty thousand, one hundred thirty-two".