3982439928 has 64 divisors (see below), whose sum is σ = 10272614400. Its totient is φ = 1285914240.

The previous prime is 3982439917. The next prime is 3982439947. The reversal of 3982439928 is 8299342893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80673 + ... + 120303.

It is an arithmetic number, because the mean of its divisors is an integer number (160509600).

Almost surely, 2^3982439928 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 3982439928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5136307200).

3982439928 is an abundant number, since it is smaller than the sum of its proper divisors (6290174472).

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

3982439928 is a wasteful number, since it uses less digits than its factorization.

3982439928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39772 (or 39768 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 57.

The square root of 3982439928 is about 63106.5759489453. The cubic root of 3982439928 is about 1585.0747380561.

The spelling of 3982439928 in words is "three billion, nine hundred eighty-two million, four hundred thirty-nine thousand, nine hundred twenty-eight".