1685882808 has 40 divisors (see below), whose sum is σ = 4722034680. Its totient is φ = 561960720.

The previous prime is 1685882801. The next prime is 1685882833. The reversal of 1685882808 is 8082885861.

It is a happy number.

1685882808 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1685882801) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1300188 + ... + 1301483.

It is an arithmetic number, because the mean of its divisors is an integer number (118050867).

Almost surely, 2^1685882808 is an apocalyptic number.

1685882808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1685882808 is an abundant number, since it is smaller than the sum of its proper divisors (3036151872).

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

1685882808 is a wasteful number, since it uses less digits than its factorization.

1685882808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601689 (or 2601676 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 54.

The square root of 1685882808 is about 41059.5032605121. The cubic root of 1685882808 is about 1190.1703515277.

It can be divided in two parts, 168588 and 2808, that added together give a square (171396 = 414²).

The spelling of 1685882808 in words is "one billion, six hundred eighty-five million, eight hundred eighty-two thousand, eight hundred eight".