13289288 has 8 divisors (see below), whose sum is σ = 24917430. Its totient is φ = 6644640.

The previous prime is 13289281. The next prime is 13289299. The reversal of 13289288 is 88298231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12802084 + 487204 = 3578^2 + 698^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (13289281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 830573 + ... + 830588.

Almost surely, 2^13289288 is an apocalyptic number.

It is an amenable number.

13289288 is a deficient number, since it is larger than the sum of its proper divisors (11628142).

13289288 is a wasteful number, since it uses less digits than its factorization.

13289288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661167 (or 1661163 counting only the distinct ones).

The product of its digits is 55296, while the sum is 41.

The square root of 13289288 is about 3645.4475719725. The cubic root of 13289288 is about 236.8648246709.

The spelling of 13289288 in words is "thirteen million, two hundred eighty-nine thousand, two hundred eighty-eight".