13424400343520 has 48 divisors (see below), whose sum is σ = 31995810861840. Its totient is φ = 5322240129024.

The previous prime is 13424400343513. The next prime is 13424400343553. The reversal of 13424400343520 is 2534300442431.

It is a congruent number.

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, 371231930 + ... + 371268089.

It is an arithmetic number, because the mean of its divisors is an integer number (666579392955).

Almost surely, 2^{13424400343520} is an apocalyptic number.

13424400343520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424400343520 is an abundant number, since it is smaller than the sum of its proper divisors (18571410518320).

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

13424400343520 is a wasteful number, since it uses less digits than its factorization.

13424400343520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742500147 (or 742500139 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 13424400343520 its reverse (2534300442431), we get a palindrome (15958700785951).

The spelling of 13424400343520 in words is "thirteen trillion, four hundred twenty-four billion, four hundred million, three hundred forty-three thousand, five hundred twenty".