13400517 has 12 divisors (see below), whose sum is σ = 19348224. Its totient is φ = 8246160.

The previous prime is 13400509. The next prime is 13400551. The reversal of 13400517 is 71500431.

It is not a de Polignac number, because 13400517 - 2³ = 13400509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13400493 and 13400502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12709 + ... + 13722.

It is an arithmetic number, because the mean of its divisors is an integer number (1612352).

Almost surely, 2^13400517 is an apocalyptic number.

It is an amenable number.

13400517 is a deficient number, since it is larger than the sum of its proper divisors (5947707).

13400517 is a wasteful number, since it uses less digits than its factorization.

13400517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26460 (or 26447 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 13400517 is about 3660.6716596821. The cubic root of 13400517 is about 237.5238284495.

Adding to 13400517 its reverse (71500431), we get a palindrome (84900948).

The spelling of 13400517 in words is "thirteen million, four hundred thousand, five hundred seventeen".