1338639339 has 8 divisors (see below), whose sum is σ = 1790556112. Its totient is φ = 889574400.

The previous prime is 1338639301. The next prime is 1338639359. The reversal of 1338639339 is 9339368331.

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

It is not a de Polignac number, because 1338639339 - 2²⁴ = 1321862123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338639359) 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, 711862 + ... + 713739.

It is an arithmetic number, because the mean of its divisors is an integer number (223819514).

Almost surely, 2^1338639339 is an apocalyptic number.

1338639339 is a deficient number, since it is larger than the sum of its proper divisors (451916773).

1338639339 is a wasteful number, since it uses less digits than its factorization.

1338639339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425917.

The product of its digits is 944784, while the sum is 48.

The square root of 1338639339 is about 36587.4205021343. The cubic root of 1338639339 is about 1102.1004875961.

It can be divided in two parts, 13386 and 39339, that added together give a palindrome (52725).

The spelling of 1338639339 in words is "one billion, three hundred thirty-eight million, six hundred thirty-nine thousand, three hundred thirty-nine".