4138739 has 8 divisors (see below), whose sum is σ = 4536000. Its totient is φ = 3745000.

The previous prime is 4138723. The next prime is 4138741. The reversal of 4138739 is 9378314.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4138739 - 2⁴ = 4138723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4138699 and 4138708.

It is not an unprimeable number, because it can be changed into a prime (4138139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2012 + ... + 3510.

It is an arithmetic number, because the mean of its divisors is an integer number (567000).

Almost surely, 2^4138739 is an apocalyptic number.

4138739 is a deficient number, since it is larger than the sum of its proper divisors (397261).

4138739 is a wasteful number, since it uses less digits than its factorization.

4138739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761.

The product of its digits is 18144, while the sum is 35.

The square root of 4138739 is about 2034.3890974934. The cubic root of 4138739 is about 160.5545729801.

The spelling of 4138739 in words is "four million, one hundred thirty-eight thousand, seven hundred thirty-nine".