1440449323 has 2 divisors, whose sum is σ = 1440449324. Its totient is φ = 1440449322.

The previous prime is 1440449251. The next prime is 1440449333. The reversal of 1440449323 is 3239440441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1440449323 - 2¹³ = 1440441131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440449333) 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 as a sum of consecutive naturals, namely, 720224661 + 720224662.

It is an arithmetic number, because the mean of its divisors is an integer number (720224662).

Almost surely, 2^1440449323 is an apocalyptic number.

1440449323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440449323 is an equidigital number, since it uses as much as digits as its factorization.

1440449323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1440449323 is about 37953.2518106156. The cubic root of 1440449323 is about 1129.3606749797.

Adding to 1440449323 its reverse (3239440441), we get a palindrome (4679889764).

The spelling of 1440449323 in words is "one billion, four hundred forty million, four hundred forty-nine thousand, three hundred twenty-three".