1320144224 has 48 divisors (see below), whose sum is σ = 2982873600. Its totient is φ = 563385984.

The previous prime is 1320144223. The next prime is 1320144229. The reversal of 1320144224 is 4224410231.

It is a self number, because there is not a number n which added to its sum of digits gives 1320144224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320144223) by changing a digit.

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, 41207 + ... + 65865.

It is an arithmetic number, because the mean of its divisors is an integer number (62143200).

Almost surely, 2^1320144224 is an apocalyptic number.

1320144224 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320144224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1491436800).

1320144224 is an abundant number, since it is smaller than the sum of its proper divisors (1662729376).

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

1320144224 is a wasteful number, since it uses less digits than its factorization.

1320144224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24915 (or 24907 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1320144224 is about 36333.7890124330. The cubic root of 1320144224 is about 1097.0012605841.

Adding to 1320144224 its reverse (4224410231), we get a palindrome (5544554455).

The spelling of 1320144224 in words is "one billion, three hundred twenty million, one hundred forty-four thousand, two hundred twenty-four".