13840219 has 4 divisors (see below), whose sum is σ = 13867920. Its totient is φ = 13812520.

The previous prime is 13840217. The next prime is 13840237. The reversal of 13840219 is 91204831.

It is a happy number.

13840219 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13840219 - 2¹ = 13840217 is a prime.

It is a super-2 number, since 2×13840219² = 383103323935922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13840217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13087 + ... + 14104.

It is an arithmetic number, because the mean of its divisors is an integer number (3466980).

Almost surely, 2^13840219 is an apocalyptic number.

13840219 is a deficient number, since it is larger than the sum of its proper divisors (27701).

13840219 is an equidigital number, since it uses as much as digits as its factorization.

13840219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27700.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13840219 is about 3720.2444812136. The cubic root of 13840219 is about 240.0938232706.

The spelling of 13840219 in words is "thirteen million, eight hundred forty thousand, two hundred nineteen".