13144400340 has 48 divisors (see below), whose sum is σ = 38969284032. Its totient is φ = 3298986496.

The previous prime is 13144400333. The next prime is 13144400363. The reversal of 13144400340 is 4300444131.

It is a self number, because there is not a number n which added to its sum of digits gives 13144400340.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6442314 + ... + 6444353.

It is an arithmetic number, because the mean of its divisors is an integer number (811860084).

Almost surely, 2^13144400340 is an apocalyptic number.

13144400340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144400340 is an abundant number, since it is smaller than the sum of its proper divisors (25824883692).

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

13144400340 is a wasteful number, since it uses less digits than its factorization.

13144400340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12886696 (or 12886694 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 13144400340 its reverse (4300444131), we get a palindrome (17444844471).

The spelling of 13144400340 in words is "thirteen billion, one hundred forty-four million, four hundred thousand, three hundred forty".