13420144441444 has 24 divisors (see below), whose sum is σ = 25402255288760. Its totient is φ = 6166865159424.

The previous prime is 13420144441439. The next prime is 13420144441481. The reversal of 13420144441444 is 44414444102431.

It can be written as a sum of positive squares in 4 ways, for example, as 2190192804900 + 11229951636544 = 1479930^2 + 3351112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13420144441397 and 13420144441406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 563480889 + ... + 563504704.

Almost surely, 2^{13420144441444} is an apocalyptic number.

It is an amenable number.

13420144441444 is a deficient number, since it is larger than the sum of its proper divisors (11982110847316).

13420144441444 is a wasteful number, since it uses less digits than its factorization.

13420144441444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126985839 (or 1126985837 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

Adding to 13420144441444 its reverse (44414444102431), we get a palindrome (57834588543875).

The spelling of 13420144441444 in words is "thirteen trillion, four hundred twenty billion, one hundred forty-four million, four hundred forty-one thousand, four hundred forty-four".