1444530144 has 24 divisors (see below), whose sum is σ = 3791891880. Its totient is φ = 481510016.

The previous prime is 1444530121. The next prime is 1444530149. The reversal of 1444530144 is 4410354441.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444530149) 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, 7523499 + ... + 7523690.

It is an arithmetic number, because the mean of its divisors is an integer number (157995495).

Almost surely, 2^1444530144 is an apocalyptic number.

It is an amenable number.

1444530144 is an abundant number, since it is smaller than the sum of its proper divisors (2347361736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444530144 is a wasteful number, since it uses less digits than its factorization.

1444530144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15047202 (or 15047194 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 1444530144 is about 38006.9749388188. The cubic root of 1444530144 is about 1130.4261696893.

Adding to 1444530144 its reverse (4410354441), we get a palindrome (5854884585).

The spelling of 1444530144 in words is "one billion, four hundred forty-four million, five hundred thirty thousand, one hundred forty-four".