13884394 has 4 divisors (see below), whose sum is σ = 20826594. Its totient is φ = 6942196.

The previous prime is 13884389. The next prime is 13884397. The reversal of 13884394 is 49348831.

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

It can be written as a sum of positive squares in only one way, i.e., 10804369 + 3080025 = 3287^2 + 1755^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13884397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471097 + ... + 3471100.

Almost surely, 2^13884394 is an apocalyptic number.

13884394 is a deficient number, since it is larger than the sum of its proper divisors (6942200).

13884394 is an equidigital number, since it uses as much as digits as its factorization.

13884394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6942199.

The product of its digits is 82944, while the sum is 40.

The square root of 13884394 is about 3726.1768610736. The cubic root of 13884394 is about 240.3489945804.

The spelling of 13884394 in words is "thirteen million, eight hundred eighty-four thousand, three hundred ninety-four".