13289218 has 8 divisors (see below), whose sum is σ = 19949580. Its totient is φ = 6639360.

The previous prime is 13289209. The next prime is 13289231. The reversal of 13289218 is 81298231.

It can be written as a sum of positive squares in 2 ways, for example, as 10131489 + 3157729 = 3183^2 + 1777^2 .

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

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, 2698 + ... + 5818.

Almost surely, 2^13289218 is an apocalyptic number.

13289218 is a deficient number, since it is larger than the sum of its proper divisors (6660362).

13289218 is a wasteful number, since it uses less digits than its factorization.

13289218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252.

The product of its digits is 6912, while the sum is 34.

The square root of 13289218 is about 3645.4379709440. The cubic root of 13289218 is about 236.8644087829.

The spelling of 13289218 in words is "thirteen million, two hundred eighty-nine thousand, two hundred eighteen".