13239395424 has 72 divisors (see below), whose sum is σ = 39286486512. Its totient is φ = 4221254400.

The previous prime is 13239395419. The next prime is 13239395467. The reversal of 13239395424 is 42459393231.

13239395424 is a `hidden beast` number, since 1 + 3 + 239 + 395 + 4 + 24 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 13239395424.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 992727 + ... + 1005974.

It is an arithmetic number, because the mean of its divisors is an integer number (545645646).

Almost surely, 2^13239395424 is an apocalyptic number.

It is an amenable number.

13239395424 is an abundant number, since it is smaller than the sum of its proper divisors (26047091088).

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

13239395424 is a wasteful number, since it uses less digits than its factorization.

13239395424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998740 (or 1998729 counting only the distinct ones).

The product of its digits is 699840, while the sum is 45.

The spelling of 13239395424 in words is "thirteen billion, two hundred thirty-nine million, three hundred ninety-five thousand, four hundred twenty-four".