13343240443540 has 36 divisors (see below), whose sum is σ = 32595630228756. Its totient is φ = 4574825294592.

The previous prime is 13343240443537. The next prime is 13343240443567. The reversal of 13343240443540 is 4534404234331.

It can be written as a sum of positive squares in 2 ways, for example, as 9723034039684 + 3620206403856 = 3118178^2 + 1902684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13343240443493 and 13343240443502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6807774757 + ... + 6807776716.

It is an arithmetic number, because the mean of its divisors is an integer number (905434173021).

Almost surely, 2^{13343240443540} is an apocalyptic number.

13343240443540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13343240443540 is an abundant number, since it is smaller than the sum of its proper divisors (19252389785216).

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

13343240443540 is a wasteful number, since it uses less digits than its factorization.

13343240443540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13615551496 (or 13615551487 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 13343240443540 its reverse (4534404234331), we get a palindrome (17877644677871).

The spelling of 13343240443540 in words is "thirteen trillion, three hundred forty-three billion, two hundred forty million, four hundred forty-three thousand, five hundred forty".