13890369 has 8 divisors (see below), whose sum is σ = 18781632. Its totient is φ = 9129680.

The previous prime is 13890347. The next prime is 13890379. The reversal of 13890369 is 96309831.

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 13890369 - 2⁵ = 13890337 is a prime.

It is a super-2 number, since 2×13890369² = 385884701912322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13890329) 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, 32394 + ... + 32819.

It is an arithmetic number, because the mean of its divisors is an integer number (2347704).

Almost surely, 2^13890369 is an apocalyptic number.

It is an amenable number.

13890369 is a deficient number, since it is larger than the sum of its proper divisors (4891263).

13890369 is an equidigital number, since it uses as much as digits as its factorization.

13890369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65287.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 13890369 is about 3726.9785349529. The cubic root of 13890369 is about 240.3834668397.

The spelling of 13890369 in words is "thirteen million, eight hundred ninety thousand, three hundred sixty-nine".