13408415 has 4 divisors (see below), whose sum is σ = 16090104. Its totient is φ = 10726728.

The previous prime is 13408397. The next prime is 13408463. The reversal of 13408415 is 51480431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51480431 = 37 ⋅1391363.

It is a cyclic number.

It is not a de Polignac number, because 13408415 - 2¹⁰ = 13407391 is a prime.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340837 + ... + 1340846.

It is an arithmetic number, because the mean of its divisors is an integer number (4022526).

Almost surely, 2^13408415 is an apocalyptic number.

13408415 is a deficient number, since it is larger than the sum of its proper divisors (2681689).

13408415 is an equidigital number, since it uses as much as digits as its factorization.

13408415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681688.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 13408415 is about 3661.7502645593. The cubic root of 13408415 is about 237.5704832356.

Adding to 13408415 its reverse (51480431), we get a palindrome (64888846).

The spelling of 13408415 in words is "thirteen million, four hundred eight thousand, four hundred fifteen".