13664242 has 8 divisors (see below), whose sum is σ = 21157632. Its totient is φ = 6611700.

The previous prime is 13664237. The next prime is 13664251. The reversal of 13664242 is 24246631.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13664242.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110134 + ... + 110257.

It is an arithmetic number, because the mean of its divisors is an integer number (2644704).

Almost surely, 2^13664242 is an apocalyptic number.

13664242 is a deficient number, since it is larger than the sum of its proper divisors (7493390).

13664242 is a wasteful number, since it uses less digits than its factorization.

13664242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220424.

The product of its digits is 6912, while the sum is 28.

The square root of 13664242 is about 3696.5175503438. The cubic root of 13664242 is about 239.0718900465.

The spelling of 13664242 in words is "thirteen million, six hundred sixty-four thousand, two hundred forty-two".