13009668 has 24 divisors (see below), whose sum is σ = 34692672. Its totient is φ = 3717024.

The previous prime is 13009663. The next prime is 13009687. The reversal of 13009668 is 86690031.

It is a super-2 number, since 2×13009668² = 338502922940448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13009663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77355 + ... + 77522.

It is an arithmetic number, because the mean of its divisors is an integer number (1445528).

Almost surely, 2^13009668 is an apocalyptic number.

It is an amenable number.

13009668 is an abundant number, since it is smaller than the sum of its proper divisors (21683004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13009668 is a wasteful number, since it uses less digits than its factorization.

13009668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154891 (or 154889 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 13009668 is about 3606.8917366619. The cubic root of 13009668 is about 235.1917433124.

Adding to 13009668 its reverse (86690031), we get a palindrome (99699699).

The spelling of 13009668 in words is "thirteen million, nine thousand, six hundred sixty-eight".