1444403144 has 8 divisors (see below), whose sum is σ = 2708255910. Its totient is φ = 722201568.

The previous prime is 1444403141. The next prime is 1444403167. The reversal of 1444403144 is 4413044441.

It can be written as a sum of positive squares in only one way, i.e., 761208100 + 683195044 = 27590^2 + 26138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1444403141) 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, 90275189 + ... + 90275204.

Almost surely, 2^1444403144 is an apocalyptic number.

It is an amenable number.

1444403144 is a deficient number, since it is larger than the sum of its proper divisors (1263852766).

1444403144 is a wasteful number, since it uses less digits than its factorization.

1444403144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180550399 (or 180550395 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 1444403144 is about 38005.3041561306. The cubic root of 1444403144 is about 1130.3930405015.

Adding to 1444403144 its reverse (4413044441), we get a palindrome (5857447585).

The spelling of 1444403144 in words is "one billion, four hundred forty-four million, four hundred three thousand, one hundred forty-four".