11444403440 has 20 divisors (see below), whose sum is σ = 26608238184. Its totient is φ = 4577761344.

The previous prime is 11444403427. The next prime is 11444403449. The reversal of 11444403440 is 4430444411.

11444403440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444403449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71527442 + ... + 71527601.

Almost surely, 2^11444403440 is an apocalyptic number.

11444403440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11444403440 is an abundant number, since it is smaller than the sum of its proper divisors (15163834744).

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

11444403440 is a wasteful number, since it uses less digits than its factorization.

11444403440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143055056 (or 143055050 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 11444403440 its reverse (4430444411), we get a palindrome (15874847851).

The spelling of 11444403440 in words is "eleven billion, four hundred forty-four million, four hundred three thousand, four hundred forty".