3943043140 has 48 divisors (see below), whose sum is σ = 8559419904. Its totient is φ = 1524211200.

The previous prime is 3943043123. The next prime is 3943043177. The reversal of 3943043140 is 413403493.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483900 + ... + 491980.

It is an arithmetic number, because the mean of its divisors is an integer number (178321248).

Almost surely, 2^3943043140 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 3943043140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4279709952).

3943043140 is an abundant number, since it is smaller than the sum of its proper divisors (4616376764).

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

3943043140 is a wasteful number, since it uses less digits than its factorization.

3943043140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8906 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 3943043140 is about 62793.6552527403. The cubic root of 3943043140 is about 1579.8305565233.

The spelling of 3943043140 in words is "three billion, nine hundred forty-three million, forty-three thousand, one hundred forty".