4406168139 has 4 divisors (see below), whose sum is σ = 5874890856. Its totient is φ = 2937445424.

The previous prime is 4406168131. The next prime is 4406168141. The reversal of 4406168139 is 9318616044.

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 4406168139 - 2³ = 4406168131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4406168139.

It is not an unprimeable number, because it can be changed into a prime (4406168131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 734361354 + ... + 734361359.

It is an arithmetic number, because the mean of its divisors is an integer number (1468722714).

Almost surely, 2^4406168139 is an apocalyptic number.

4406168139 is a deficient number, since it is larger than the sum of its proper divisors (1468722717).

4406168139 is a wasteful number, since it uses less digits than its factorization.

4406168139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468722716.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 4406168139 is about 66378.9736211701. The cubic root of 4406168139 is about 1639.4078939008.

The spelling of 4406168139 in words is "four billion, four hundred six million, one hundred sixty-eight thousand, one hundred thirty-nine".