3449156839 has 4 divisors (see below), whose sum is σ = 3452149456. Its totient is φ = 3446164224.

The previous prime is 3449156831. The next prime is 3449156863. The reversal of 3449156839 is 9386519443.

It is a happy number.

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 3449156839 - 2³ = 3449156831 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 (3449156831) 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, 1494579 + ... + 1496884.

It is an arithmetic number, because the mean of its divisors is an integer number (863037364).

Almost surely, 2^3449156839 is an apocalyptic number.

3449156839 is a deficient number, since it is larger than the sum of its proper divisors (2992617).

3449156839 is a wasteful number, since it uses less digits than its factorization.

3449156839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992616.

The product of its digits is 2799360, while the sum is 52.

The square root of 3449156839 is about 58729.5227206896. The cubic root of 3449156839 is about 1510.9067020602.

The spelling of 3449156839 in words is "three billion, four hundred forty-nine million, one hundred fifty-six thousand, eight hundred thirty-nine".