3932139049 has 4 divisors (see below), whose sum is σ = 4163441364. Its totient is φ = 3700836736.

The previous prime is 3932139047. The next prime is 3932139061. The reversal of 3932139049 is 9409312393.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3207183424 + 724955625 = 56632^2 + 26925^2 .

It is a cyclic number.

It is not a de Polignac number, because 3932139049 - 2¹ = 3932139047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3932138996 and 3932139014.

It is not an unprimeable number, because it can be changed into a prime (3932139047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115651132 + ... + 115651165.

It is an arithmetic number, because the mean of its divisors is an integer number (1040860341).

Almost surely, 2^3932139049 is an apocalyptic number.

It is an amenable number.

3932139049 is a deficient number, since it is larger than the sum of its proper divisors (231302315).

3932139049 is a wasteful number, since it uses less digits than its factorization.

3932139049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231302314.

The product of its (nonzero) digits is 157464, while the sum is 43.

The square root of 3932139049 is about 62706.7703601453. The cubic root of 3932139049 is about 1578.3729243108.

The spelling of 3932139049 in words is "three billion, nine hundred thirty-two million, one hundred thirty-nine thousand, forty-nine".