13440322434 has 192 divisors, whose sum is σ = 36444367872. Its totient is φ = 3207859200.

The previous prime is 13440322433. The next prime is 13440322529. The reversal of 13440322434 is 43422304431.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13440322433) 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 95 ways as a sum of consecutive naturals, for example, 5740104 + ... + 5742444.

It is an arithmetic number, because the mean of its divisors is an integer number (189814416).

Almost surely, 2^13440322434 is an apocalyptic number.

13440322434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13440322434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18222183936).

13440322434 is an abundant number, since it is smaller than the sum of its proper divisors (23004045438).

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

13440322434 is a wasteful number, since it uses less digits than its factorization.

13440322434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441 (or 2424 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 13440322434 its reverse (43422304431), we get a palindrome (56862626865).

The spelling of 13440322434 in words is "thirteen billion, four hundred forty million, three hundred twenty-two thousand, four hundred thirty-four".