1442330321 has 8 divisors (see below), whose sum is σ = 1457114880. Its totient is φ = 1427560992.

The previous prime is 1442330317. The next prime is 1442330339. The reversal of 1442330321 is 1230332441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442330321 - 2² = 1442330317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442330311) 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, 351560 + ... + 355638.

It is an arithmetic number, because the mean of its divisors is an integer number (182139360).

Almost surely, 2^1442330321 is an apocalyptic number.

It is an amenable number.

1442330321 is a deficient number, since it is larger than the sum of its proper divisors (14784559).

1442330321 is a wasteful number, since it uses less digits than its factorization.

1442330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7615.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1442330321 is about 37978.0241850468. The cubic root of 1442330321 is about 1129.8520497033.

Adding to 1442330321 its reverse (1230332441), we get a palindrome (2672662762).

It can be divided in two parts, 14423 and 30321, that added together give a palindrome (44744).

The spelling of 1442330321 in words is "one billion, four hundred forty-two million, three hundred thirty thousand, three hundred twenty-one".