13868449 has 8 divisors (see below), whose sum is σ = 15889280. Its totient is φ = 11857536.

The previous prime is 13868443. The next prime is 13868497. The reversal of 13868449 is 94486831.

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

It is a cyclic number.

It is not a de Polignac number, because 13868449 - 2⁵ = 13868417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13868443) 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 7 ways as a sum of consecutive naturals, for example, 817 + ... + 5329.

It is an arithmetic number, because the mean of its divisors is an integer number (1986160).

Almost surely, 2^13868449 is an apocalyptic number.

It is an amenable number.

13868449 is a deficient number, since it is larger than the sum of its proper divisors (2020831).

13868449 is an equidigital number, since it uses as much as digits as its factorization.

13868449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959.

The product of its digits is 165888, while the sum is 43.

The square root of 13868449 is about 3724.0366539550. The cubic root of 13868449 is about 240.2569528080.

The spelling of 13868449 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred forty-nine".