13438824388 has 12 divisors (see below), whose sum is σ = 25655937552. Its totient is φ = 6108556520.

The previous prime is 13438824293. The next prime is 13438824389. The reversal of 13438824388 is 88342883431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13438824389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152713870 + ... + 152713957.

It is an arithmetic number, because the mean of its divisors is an integer number (2137994796).

Almost surely, 2^13438824388 is an apocalyptic number.

It is an amenable number.

13438824388 is a deficient number, since it is larger than the sum of its proper divisors (12217113164).

13438824388 is a wasteful number, since it uses less digits than its factorization.

13438824388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305427842 (or 305427840 counting only the distinct ones).

The product of its digits is 3538944, while the sum is 52.

The spelling of 13438824388 in words is "thirteen billion, four hundred thirty-eight million, eight hundred twenty-four thousand, three hundred eighty-eight".