4139841 has 4 divisors (see below), whose sum is σ = 5519792. Its totient is φ = 2759892.

The previous prime is 4139831. The next prime is 4139873. The reversal of 4139841 is 1489314.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4139841 - 2⁵ = 4139809 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4139799 and 4139808.

It is not an unprimeable number, because it can be changed into a prime (4139801) 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, 689971 + ... + 689976.

It is an arithmetic number, because the mean of its divisors is an integer number (1379948).

Almost surely, 2^4139841 is an apocalyptic number.

It is an amenable number.

4139841 is a deficient number, since it is larger than the sum of its proper divisors (1379951).

4139841 is a wasteful number, since it uses less digits than its factorization.

4139841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379950.

The product of its digits is 3456, while the sum is 30.

The square root of 4139841 is about 2034.6599224440. The cubic root of 4139841 is about 160.5688217193.

The spelling of 4139841 in words is "four million, one hundred thirty-nine thousand, eight hundred forty-one".