1113839439 has 8 divisors (see below), whose sum is σ = 1572479280. Its totient is φ = 698879616.

The previous prime is 1113839431. The next prime is 1113839501. The reversal of 1113839439 is 9349383111.

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

It is not a de Polignac number, because 1113839439 - 2³ = 1113839431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1113839439.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113839431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10919944 + ... + 10920045.

It is an arithmetic number, because the mean of its divisors is an integer number (196559910).

Almost surely, 2^1113839439 is an apocalyptic number.

1113839439 is a deficient number, since it is larger than the sum of its proper divisors (458639841).

1113839439 is a wasteful number, since it uses less digits than its factorization.

1113839439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21840009.

The product of its digits is 69984, while the sum is 42.

The square root of 1113839439 is about 33374.2331597297. The cubic root of 1113839439 is about 1036.5912306206.

The spelling of 1113839439 in words is "one billion, one hundred thirteen million, eight hundred thirty-nine thousand, four hundred thirty-nine".