13240043453444 has 6 divisors (see below), whose sum is σ = 23170076043534. Its totient is φ = 6620021726720.

The previous prime is 13240043453431. The next prime is 13240043453467. The reversal of 13240043453444 is 44435434004231.

It can be written as a sum of positive squares in only one way, i.e., 6883906638400 + 6356136815044 = 2623720^2 + 2521138^2 .

It is a super-2 number, since 2×13240043453444² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655005431677 + ... + 1655005431684.

It is an arithmetic number, because the mean of its divisors is an integer number (3861679340589).

Almost surely, 2^{13240043453444} is an apocalyptic number.

It is an amenable number.

13240043453444 is a deficient number, since it is larger than the sum of its proper divisors (9930032590090).

13240043453444 is a wasteful number, since it uses less digits than its factorization.

13240043453444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3310010863365 (or 3310010863363 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 41.

Adding to 13240043453444 its reverse (44435434004231), we get a palindrome (57675477457675).

The spelling of 13240043453444 in words is "thirteen trillion, two hundred forty billion, forty-three million, four hundred fifty-three thousand, four hundred forty-four".