13224044000 has 48 divisors (see below), whose sum is σ = 32491485936. Its totient is φ = 5289616000.

The previous prime is 13224043979. The next prime is 13224044003. The reversal of 13224044000 is 44042231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13224044003) 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, 1649006 + ... + 1657005.

It is an arithmetic number, because the mean of its divisors is an integer number (676905957).

Almost surely, 2^13224044000 is an apocalyptic number.

13224044000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13224044000 is an abundant number, since it is smaller than the sum of its proper divisors (19267441936).

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

13224044000 is an equidigital number, since it uses as much as digits as its factorization.

13224044000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3306036 (or 3306018 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13224044000 its reverse (44042231), we get a palindrome (13268086231).

The spelling of 13224044000 in words is "thirteen billion, two hundred twenty-four million, forty-four thousand".