13728398222 has 32 divisors (see below), whose sum is σ = 26057099520.
Its totient is φ = 5268890880.
The previous prime is 13728398197. The next prime is 13728398227. The reversal of 13728398222 is 22289382731.
It is a happy number.
It is a super-2 number, since 2×137283982222 (a number of 21 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13728398227) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 654947 + ... + 675582.
It is an arithmetic number, because the mean of its divisors is an integer number (814284360).
Almost surely, 213728398222 is an apocalyptic number.
13728398222 is a deficient number, since it is larger than the sum of its proper divisors (12328701298).
13728398222 is a wasteful number, since it uses less digits than its factorization.
13728398222 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1330616.
The product of its digits is 580608, while the sum is 47.
The spelling of 13728398222 in words is "thirteen billion, seven hundred twenty-eight million, three hundred ninety-eight thousand, two hundred twenty-two".