4043981736 has 96 divisors (see below), whose sum is σ = 11605838400. Its totient is φ = 1268524800.

The previous prime is 4043981671. The next prime is 4043981771. The reversal of 4043981736 is 6371893404.

4043981736 is a `hidden beast` number, since 40 + 439 + 8 + 173 + 6 = 666.

It is a super-2 number, since 2×4043981736² = 32707576562203147392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4043981691 and 4043981700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196780 + ... + 216356.

It is an arithmetic number, because the mean of its divisors is an integer number (120894150).

Almost surely, 2^4043981736 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 4043981736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5802919200).

4043981736 is an abundant number, since it is smaller than the sum of its proper divisors (7561856664).

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

4043981736 is a wasteful number, since it uses less digits than its factorization.

4043981736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19759 (or 19752 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 4043981736 is about 63592.3087802291. The cubic root of 4043981736 is about 1593.1979117684.

The spelling of 4043981736 in words is "four billion, forty-three million, nine hundred eighty-one thousand, seven hundred thirty-six".