3681998908 has 48 divisors (see below), whose sum is σ = 7593001920. Its totient is φ = 1529266176.

The previous prime is 3681998863. The next prime is 3681998917. The reversal of 3681998908 is 8098991863.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259338 + ... + 273166.

It is an arithmetic number, because the mean of its divisors is an integer number (158187540).

Almost surely, 2^3681998908 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 3681998908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3796500960).

3681998908 is an abundant number, since it is smaller than the sum of its proper divisors (3911003012).

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

3681998908 is a wasteful number, since it uses less digits than its factorization.

3681998908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14134 (or 14132 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 61.

The square root of 3681998908 is about 60679.4768270129. The cubic root of 3681998908 is about 1544.1680125141.

The spelling of 3681998908 in words is "three billion, six hundred eighty-one million, nine hundred ninety-eight thousand, nine hundred eight".