1321441424 has 20 divisors (see below), whose sum is σ = 2561852400. Its totient is φ = 660318240.

The previous prime is 1321441403. The next prime is 1321441481. The reversal of 1321441424 is 4241441231.

It is a junction number, because it is equal to n+sod(n) for n = 1321441393 and 1321441402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2879 + ... + 51489.

It is an arithmetic number, because the mean of its divisors is an integer number (128092620).

Almost surely, 2^1321441424 is an apocalyptic number.

It is an amenable number.

1321441424 is a deficient number, since it is larger than the sum of its proper divisors (1240410976).

1321441424 is a wasteful number, since it uses less digits than its factorization.

1321441424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50318 (or 50312 counting only the distinct ones).

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

The square root of 1321441424 is about 36351.6357816261. The cubic root of 1321441424 is about 1097.3604547197.

Adding to 1321441424 its reverse (4241441231), we get a palindrome (5562882655).

The spelling of 1321441424 in words is "one billion, three hundred twenty-one million, four hundred forty-one thousand, four hundred twenty-four".