13144430432 has 48 divisors (see below), whose sum is σ = 31131555840. Its totient is φ = 5336834688.

The previous prime is 13144430419. The next prime is 13144430437. The reversal of 13144430432 is 23403444131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13144430395 and 13144430404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144430437) 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, 1539968 + ... + 1548479.

It is an arithmetic number, because the mean of its divisors is an integer number (648574080).

Almost surely, 2^13144430432 is an apocalyptic number.

It is an amenable number.

13144430432 is an abundant number, since it is smaller than the sum of its proper divisors (17987125408).

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

13144430432 is a wasteful number, since it uses less digits than its factorization.

13144430432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088483 (or 3088475 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13144430432 its reverse (23403444131), we get a palindrome (36547874563).

The spelling of 13144430432 in words is "thirteen billion, one hundred forty-four million, four hundred thirty thousand, four hundred thirty-two".