1680852 has 12 divisors (see below), whose sum is σ = 3922016. Its totient is φ = 560280.

The previous prime is 1680839. The next prime is 1680859. The reversal of 1680852 is 2580861.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1680859) by changing a digit.

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, 70024 + ... + 70047.

2^1680852 is an apocalyptic number.

1680852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1680852 is an abundant number, since it is smaller than the sum of its proper divisors (2241164).

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

1680852 is a wasteful number, since it uses less digits than its factorization.

1680852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140078 (or 140076 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 1680852 is about 1296.4767641574. The cubic root of 1680852 is about 118.8985317761.

Subtracting 1680852 from its reverse (2580861), we obtain a palindrome (900009).

The spelling of 1680852 in words is "one million, six hundred eighty thousand, eight hundred fifty-two".