1324144421 has 4 divisors (see below), whose sum is σ = 1349128332. Its totient is φ = 1299160512.

The previous prime is 1324144417. The next prime is 1324144429. The reversal of 1324144421 is 1244414231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 748624321 + 575520100 = 27361^2 + 23990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1324144421 - 2² = 1324144417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1324144429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12491876 + ... + 12491981.

It is an arithmetic number, because the mean of its divisors is an integer number (337282083).

Almost surely, 2^1324144421 is an apocalyptic number.

It is an amenable number.

1324144421 is a deficient number, since it is larger than the sum of its proper divisors (24983911).

1324144421 is an equidigital number, since it uses as much as digits as its factorization.

1324144421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24983910.

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

The square root of 1324144421 is about 36388.7952672248. The cubic root of 1324144421 is about 1098.1081589157.

Adding to 1324144421 its reverse (1244414231), we get a palindrome (2568558652).

The spelling of 1324144421 in words is "one billion, three hundred twenty-four million, one hundred forty-four thousand, four hundred twenty-one".