13389443448 has 32 divisors (see below), whose sum is σ = 33540720000. Its totient is φ = 4454199648.

The previous prime is 13389443437. The next prime is 13389443449. The reversal of 13389443448 is 84434498331.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13389443448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13389443449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547036 + ... + 570987.

It is an arithmetic number, because the mean of its divisors is an integer number (1048147500).

Almost surely, 2^13389443448 is an apocalyptic number.

It is an amenable number.

13389443448 is an abundant number, since it is smaller than the sum of its proper divisors (20151276552).

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

13389443448 is a wasteful number, since it uses less digits than its factorization.

13389443448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118531 (or 1118527 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 51.

The spelling of 13389443448 in words is "thirteen billion, three hundred eighty-nine million, four hundred forty-three thousand, four hundred forty-eight".