1339448985 has 72 divisors (see below), whose sum is σ = 2800624320. Its totient is φ = 580042944.

The previous prime is 1339448959. The next prime is 1339449017. The reversal of 1339448985 is 5898449331.

1339448985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1339448985 - 2¹⁵ = 1339416217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 107826 + ... + 119604.

It is an arithmetic number, because the mean of its divisors is an integer number (38897560).

Almost surely, 2^1339448985 is an apocalyptic number.

1339448985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1339448985 is an abundant number, since it is smaller than the sum of its proper divisors (1461175335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1339448985 is a wasteful number, since it uses less digits than its factorization.

1339448985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11835 (or 11813 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 1339448985 is about 36598.4833702163. The cubic root of 1339448985 is about 1102.3226364073.

The spelling of 1339448985 in words is "one billion, three hundred thirty-nine million, four hundred forty-eight thousand, nine hundred eighty-five".