13400244560 has 40 divisors (see below), whose sum is σ = 32988252456. Its totient is φ = 5044797440.

The previous prime is 13400244511. The next prime is 13400244563. The reversal of 13400244560 is 6544200431.

It can be written as a sum of positive squares in 4 ways, for example, as 97851664 + 13302392896 = 9892^2 + 115336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400244563) 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, 4925201 + ... + 4927920.

Almost surely, 2^13400244560 is an apocalyptic number.

13400244560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13400244560 is an abundant number, since it is smaller than the sum of its proper divisors (19588007896).

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

13400244560 is a wasteful number, since it uses less digits than its factorization.

13400244560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853151 (or 9853145 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 13400244560 its reverse (6544200431), we get a palindrome (19944444991).

The spelling of 13400244560 in words is "thirteen billion, four hundred million, two hundred forty-four thousand, five hundred sixty".