13408385 has 8 divisors (see below), whose sum is σ = 16118376. Its totient is φ = 10707840.

The previous prime is 13408331. The next prime is 13408397. The reversal of 13408385 is 58380431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2917264 + 10491121 = 1708^2 + 3239^2 .

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

It is not a de Polignac number, because 13408385 - 2¹² = 13404289 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

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, 1277 + ... + 5333.

It is an arithmetic number, because the mean of its divisors is an integer number (2014797).

Almost surely, 2^13408385 is an apocalyptic number.

It is an amenable number.

13408385 is a deficient number, since it is larger than the sum of its proper divisors (2709991).

13408385 is an equidigital number, since it uses as much as digits as its factorization.

13408385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 13408385 is about 3661.7461681553. The cubic root of 13408385 is about 237.5703060554.

The spelling of 13408385 in words is "thirteen million, four hundred eight thousand, three hundred eighty-five".