244120013440 has 64 divisors (see below), whose sum is σ = 614315196000. Its totient is φ = 92508632064.

The previous prime is 244120013419. The next prime is 244120013441. The reversal of 244120013440 is 44310021442.

244120013440 is digitally balanced in base 2 and base 3, because in such bases 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 (64).

It is not an unprimeable number, because it can be changed into a prime (244120013441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10025670 + ... + 10049989.

Almost surely, 2^244120013440 is an apocalyptic number.

244120013440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244120013440 is an abundant number, since it is smaller than the sum of its proper divisors (370195182560).

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

244120013440 is a wasteful number, since it uses less digits than its factorization.

244120013440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20075697 (or 20075685 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 244120013440 its reverse (44310021442), we get a palindrome (288430034882).

The spelling of 244120013440 in words is "two hundred forty-four billion, one hundred twenty million, thirteen thousand, four hundred forty".