3940173839 has 12 divisors (see below), whose sum is σ = 4584493584. Its totient is φ = 3376535904.

The previous prime is 3940173833. The next prime is 3940173869. The reversal of 3940173839 is 9383710493.

It is a happy number.

3940173839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3940173839 - 2¹² = 3940169743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3940173793 and 3940173802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940173833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 398534 + ... + 408300.

It is an arithmetic number, because the mean of its divisors is an integer number (382041132).

Almost surely, 2^3940173839 is an apocalyptic number.

3940173839 is a deficient number, since it is larger than the sum of its proper divisors (644319745).

3940173839 is an equidigital number, since it uses as much as digits as its factorization.

3940173839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18014 (or 18007 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 47.

The square root of 3940173839 is about 62770.8040334039. The cubic root of 3940173839 is about 1579.4472561792.

The spelling of 3940173839 in words is "three billion, nine hundred forty million, one hundred seventy-three thousand, eight hundred thirty-nine".