1444212321 has 4 divisors (see below), whose sum is σ = 1925616432. Its totient is φ = 962808212.

The previous prime is 1444212313. The next prime is 1444212323. The reversal of 1444212321 is 1232124441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1444212321 - 2³ = 1444212313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444212291 and 1444212300.

It is not an unprimeable number, because it can be changed into a prime (1444212323) 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, 240702051 + ... + 240702056.

It is an arithmetic number, because the mean of its divisors is an integer number (481404108).

Almost surely, 2^1444212321 is an apocalyptic number.

It is an amenable number.

1444212321 is a deficient number, since it is larger than the sum of its proper divisors (481404111).

1444212321 is an equidigital number, since it uses as much as digits as its factorization.

1444212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481404110.

The product of its digits is 1536, while the sum is 24.

The square root of 1444212321 is about 38002.7935946820. The cubic root of 1444212321 is about 1130.3432588110.

Adding to 1444212321 its reverse (1232124441), we get a palindrome (2676336762).

The spelling of 1444212321 in words is "one billion, four hundred forty-four million, two hundred twelve thousand, three hundred twenty-one".