3939696288 has 144 divisors (see below), whose sum is σ = 12263692896. Its totient is φ = 1189777920.

The previous prime is 3939696221. The next prime is 3939696301. The reversal of 3939696288 is 8826969393.

It is a Cunningham number, because it is equal to 62767²-1.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1002295 + ... + 1006217.

It is an arithmetic number, because the mean of its divisors is an integer number (85164534).

Almost surely, 2^3939696288 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 3939696288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6131846448).

3939696288 is an abundant number, since it is smaller than the sum of its proper divisors (8323996608).

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

3939696288 is a wasteful number, since it uses less digits than its factorization.

3939696288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4267 (or 4256 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 63.

The square root of 3939696288 is about 62766.9999920340. Note that the first 5 decimals coincide. The cubic root of 3939696288 is about 1579.3834436739.

The spelling of 3939696288 in words is "three billion, nine hundred thirty-nine million, six hundred ninety-six thousand, two hundred eighty-eight".