13819244 has 12 divisors (see below), whose sum is σ = 24254664. Its totient is φ = 6889344.

The previous prime is 13819243. The next prime is 13819259. The reversal of 13819244 is 44291831.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13819244.

It is not an unprimeable number, because it can be changed into a prime (13819243) 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, 3482 + ... + 6305.

It is an arithmetic number, because the mean of its divisors is an integer number (2021222).

Almost surely, 2^13819244 is an apocalyptic number.

It is an amenable number.

13819244 is a deficient number, since it is larger than the sum of its proper divisors (10435420).

13819244 is a wasteful number, since it uses less digits than its factorization.

13819244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144 (or 10142 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 13819244 is about 3717.4243771730. The cubic root of 13819244 is about 239.9724736949.

The spelling of 13819244 in words is "thirteen million, eight hundred nineteen thousand, two hundred forty-four".