13226642 has 32 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5483520.

The previous prime is 13226623. The next prime is 13226683. The reversal of 13226642 is 24662231.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 29234 + ... + 29682.

It is an arithmetic number, because the mean of its divisors is an integer number (737100).

Almost surely, 2^13226642 is an apocalyptic number.

13226642 is a deficient number, since it is larger than the sum of its proper divisors (10360558).

13226642 is a wasteful number, since it uses less digits than its factorization.

13226642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its digits is 3456, while the sum is 26.

The square root of 13226642 is about 3636.8450613134. The cubic root of 13226642 is about 236.4920429334.

Adding to 13226642 its reverse (24662231), we get a palindrome (37888873).

The spelling of 13226642 in words is "thirteen million, two hundred twenty-six thousand, six hundred forty-two".