13224666 has 64 divisors (see below), whose sum is σ = 33239808. Its totient is φ = 3414528.

The previous prime is 13224647. The next prime is 13224671. The reversal of 13224666 is 66642231.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 28710 + ... + 29166.

It is an arithmetic number, because the mean of its divisors is an integer number (519372).

Almost surely, 2^13224666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13224666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16619904).

13224666 is an abundant number, since it is smaller than the sum of its proper divisors (20015142).

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

13224666 is a wasteful number, since it uses less digits than its factorization.

13224666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its digits is 10368, while the sum is 30.

The square root of 13224666 is about 3636.5733871325. The cubic root of 13224666 is about 236.4802654026.

Adding to 13224666 its reverse (66642231), we get a palindrome (79866897).

The spelling of 13224666 in words is "thirteen million, two hundred twenty-four thousand, six hundred sixty-six".