13224411440 has 40 divisors (see below), whose sum is σ = 30942625200. Its totient is φ = 5256066816.

The previous prime is 13224411419. The next prime is 13224411443. The reversal of 13224411440 is 4411442231.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (13224411443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513890 + ... + 539009.

It is an arithmetic number, because the mean of its divisors is an integer number (773565630).

Almost surely, 2^13224411440 is an apocalyptic number.

13224411440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13224411440 is an abundant number, since it is smaller than the sum of its proper divisors (17718213760).

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

13224411440 is a wasteful number, since it uses less digits than its factorization.

13224411440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053069 (or 1053063 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 13224411440 its reverse (4411442231), we get a palindrome (17635853671).

The spelling of 13224411440 in words is "thirteen billion, two hundred twenty-four million, four hundred eleven thousand, four hundred forty".