3958081736 has 64 divisors (see below), whose sum is σ = 8833121280. Its totient is φ = 1626992640.

The previous prime is 3958081727. The next prime is 3958081741. The reversal of 3958081736 is 6371808593.

It is a happy number.

It is a super-2 number, since 2×3958081736² = 31332822057713547392, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186080 + ... + 206256.

It is an arithmetic number, because the mean of its divisors is an integer number (138017520).

Almost surely, 2^3958081736 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 3958081736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4416560640).

3958081736 is an abundant number, since it is smaller than the sum of its proper divisors (4875039544).

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

3958081736 is a wasteful number, since it uses less digits than its factorization.

3958081736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20334 (or 20330 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 3958081736 is about 62913.2874359622. The cubic root of 3958081736 is about 1581.8364769877.

The spelling of 3958081736 in words is "three billion, nine hundred fifty-eight million, eighty-one thousand, seven hundred thirty-six".