1444451444 has 24 divisors (see below), whose sum is σ = 2704088520. Its totient is φ = 672731136.

The previous prime is 1444451441. The next prime is 1444451467. The reversal of 1444451444 is 4441544441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 805878544 + 638572900 = 28388^2 + 25270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444451441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 102899 + ... + 116090.

It is an arithmetic number, because the mean of its divisors is an integer number (112670355).

Almost surely, 2^1444451444 is an apocalyptic number.

It is an amenable number.

1444451444 is a deficient number, since it is larger than the sum of its proper divisors (1259637076).

1444451444 is a wasteful number, since it uses less digits than its factorization.

1444451444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219107 (or 219105 counting only the distinct ones).

The product of its digits is 81920, while the sum is 35.

The square root of 1444451444 is about 38005.9395884380. The cubic root of 1444451444 is about 1130.4056402561.

Adding to 1444451444 its reverse (4441544441), we get a palindrome (5885995885).

The spelling of 1444451444 in words is "one billion, four hundred forty-four million, four hundred fifty-one thousand, four hundred forty-four".