13216242 has 32 divisors (see below), whose sum is σ = 30143232. Its totient is φ = 3826944.

The previous prime is 13216241. The next prime is 13216243. The reversal of 13216242 is 24261231.

It is an interprime number because it is at equal distance from previous prime (13216241) and next prime (13216243).

It is not an unprimeable number, because it can be changed into a prime (13216241) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3658 + ... + 6309.

It is an arithmetic number, because the mean of its divisors is an integer number (941976).

Almost surely, 2^13216242 is an apocalyptic number.

13216242 is an abundant number, since it is smaller than the sum of its proper divisors (16926990).

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

13216242 is a wasteful number, since it uses less digits than its factorization.

13216242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002.

The product of its digits is 576, while the sum is 21.

The square root of 13216242 is about 3635.4149694361. The cubic root of 13216242 is about 236.4300427633.

Adding to 13216242 its reverse (24261231), we get a palindrome (37477473).

The spelling of 13216242 in words is "thirteen million, two hundred sixteen thousand, two hundred forty-two".