1682840844 has 18 divisors (see below), whose sum is σ = 4253847780. Its totient is φ = 560946936.

The previous prime is 1682840837. The next prime is 1682840867. The reversal of 1682840844 is 4480482861.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1682840844.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23372754 + ... + 23372825.

Almost surely, 2^1682840844 is an apocalyptic number.

It is an amenable number.

1682840844 is an abundant number, since it is smaller than the sum of its proper divisors (2571006936).

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

1682840844 is a wasteful number, since it uses less digits than its factorization.

1682840844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46745589 (or 46745584 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 45.

The square root of 1682840844 is about 41022.4431744381. The cubic root of 1682840844 is about 1189.4540828594.

The spelling of 1682840844 in words is "one billion, six hundred eighty-two million, eight hundred forty thousand, eight hundred forty-four".