13240044144 has 60 divisors (see below), whose sum is σ = 37661197912. Its totient is φ = 4340995200.

The previous prime is 13240044143. The next prime is 13240044157. The reversal of 13240044144 is 44144004231.

13240044144 is a `hidden beast` number, since 1 + 3 + 240 + 0 + 4 + 414 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240044143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 744862 + ... + 762429.

Almost surely, 2^13240044144 is an apocalyptic number.

It is an amenable number.

13240044144 is an abundant number, since it is smaller than the sum of its proper divisors (24421153768).

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

13240044144 is a wasteful number, since it uses less digits than its factorization.

13240044144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507366 (or 1507357 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 13240044144 its reverse (44144004231), we get a palindrome (57384048375).

The spelling of 13240044144 in words is "thirteen billion, two hundred forty million, forty-four thousand, one hundred forty-four".