13320440452 has 24 divisors (see below), whose sum is σ = 25654984992. Its totient is φ = 6001161600.

The previous prime is 13320440377. The next prime is 13320440477. The reversal of 13320440452 is 25404402331.

It is a happy number.

13320440452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13320440452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334574 + ... + 1344517.

It is an arithmetic number, because the mean of its divisors is an integer number (1068957708).

Almost surely, 2^13320440452 is an apocalyptic number.

It is an amenable number.

13320440452 is a deficient number, since it is larger than the sum of its proper divisors (12334544540).

13320440452 is a wasteful number, since it uses less digits than its factorization.

13320440452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679219 (or 2679217 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 13320440452 its reverse (25404402331), we get a palindrome (38724842783).

The spelling of 13320440452 in words is "thirteen billion, three hundred twenty million, four hundred forty thousand, four hundred fifty-two".