4134239939 has 4 divisors (see below), whose sum is σ = 4134514224. Its totient is φ = 4133965656.

The previous prime is 4134239933. The next prime is 4134239947. The reversal of 4134239939 is 9399324314.

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

It is a cyclic number.

It is not a de Polignac number, because 4134239939 - 2²⁸ = 3865804483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4134239893 and 4134239902.

It is not an unprimeable number, because it can be changed into a prime (4134239933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113132 + ... + 145145.

It is an arithmetic number, because the mean of its divisors is an integer number (1033628556).

Almost surely, 2^4134239939 is an apocalyptic number.

4134239939 is a deficient number, since it is larger than the sum of its proper divisors (274285).

4134239939 is a wasteful number, since it uses less digits than its factorization.

4134239939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274284.

The product of its digits is 629856, while the sum is 47.

The square root of 4134239939 is about 64298.0554838169. The cubic root of 4134239939 is about 1604.9637435805.

The spelling of 4134239939 in words is "four billion, one hundred thirty-four million, two hundred thirty-nine thousand, nine hundred thirty-nine".