4102042039 has 4 divisors (see below), whose sum is σ = 4102214056. Its totient is φ = 4101870024.

The previous prime is 4102042003. The next prime is 4102042093. The reversal of 4102042039 is 9302402014.

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 4102042039 - 2²⁵ = 4068487607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102042099) 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, 43104 + ... + 100309.

It is an arithmetic number, because the mean of its divisors is an integer number (1025553514).

Almost surely, 2^4102042039 is an apocalyptic number.

4102042039 is a deficient number, since it is larger than the sum of its proper divisors (172017).

4102042039 is a wasteful number, since it uses less digits than its factorization.

4102042039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172016.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4102042039 is about 64047.1860349852. The cubic root of 4102042039 is about 1600.7863373108.

The spelling of 4102042039 in words is "four billion, one hundred two million, forty-two thousand, thirty-nine".