3986729244 has 18 divisors (see below), whose sum is σ = 10077565680. Its totient is φ = 1328909736.

The previous prime is 3986729213. The next prime is 3986729251. The reversal of 3986729244 is 4429276893.

3986729244 is a `hidden beast` number, since 398 + 6 + 7 + 2 + 9 + 244 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55371204 + ... + 55371275.

It is an arithmetic number, because the mean of its divisors is an integer number (559864760).

Almost surely, 2^3986729244 is an apocalyptic number.

It is an amenable number.

3986729244 is an abundant number, since it is smaller than the sum of its proper divisors (6090836436).

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

3986729244 is a wasteful number, since it uses less digits than its factorization.

3986729244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110742489 (or 110742484 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 3986729244 is about 63140.5515021844. The cubic root of 3986729244 is about 1585.6436059769.

The spelling of 3986729244 in words is "three billion, nine hundred eighty-six million, seven hundred twenty-nine thousand, two hundred forty-four".