13887242 has 8 divisors (see below), whose sum is σ = 20855232. Its totient is φ = 6935500.

The previous prime is 13887241. The next prime is 13887253. The reversal of 13887242 is 24278831.

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

It is not an unprimeable number, because it can be changed into a prime (13887241) 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 3 ways as a sum of consecutive naturals, for example, 1634 + ... + 5517.

It is an arithmetic number, because the mean of its divisors is an integer number (2606904).

Almost surely, 2^13887242 is an apocalyptic number.

13887242 is a deficient number, since it is larger than the sum of its proper divisors (6967990).

13887242 is an equidigital number, since it uses as much as digits as its factorization.

13887242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124.

The product of its digits is 21504, while the sum is 35.

The square root of 13887242 is about 3726.5590026189. The cubic root of 13887242 is about 240.3654271098.

The spelling of 13887242 in words is "thirteen million, eight hundred eighty-seven thousand, two hundred forty-two".