13440236403245 has 8 divisors (see below), whose sum is σ = 16128303957216. Its totient is φ = 10752175607056.

The previous prime is 13440236403233. The next prime is 13440236403259. The reversal of 13440236403245 is 54230463204431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13440236403245 - 2²⁶ = 13440169294381 is a prime.

It is a super-2 number, since 2×13440236403245² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5360474 + ... + 7457556.

It is an arithmetic number, because the mean of its divisors is an integer number (2016037994652).

Almost surely, 2^{13440236403245} is an apocalyptic number.

It is an amenable number.

13440236403245 is a deficient number, since it is larger than the sum of its proper divisors (2688067553971).

13440236403245 is a wasteful number, since it uses less digits than its factorization.

13440236403245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378891.

The product of its (nonzero) digits is 829440, while the sum is 41.

Adding to 13440236403245 its reverse (54230463204431), we get a palindrome (67670699607676).

The spelling of 13440236403245 in words is "thirteen trillion, four hundred forty billion, two hundred thirty-six million, four hundred three thousand, two hundred forty-five".