1444242144 has 48 divisors (see below), whose sum is σ = 3794530320. Its totient is φ = 480983040.

The previous prime is 1444242143. The next prime is 1444242181. The reversal of 1444242144 is 4412424441.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444242143) 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, 111864 + ... + 124104.

It is an arithmetic number, because the mean of its divisors is an integer number (79052715).

Almost surely, 2^1444242144 is an apocalyptic number.

It is an amenable number.

1444242144 is an abundant number, since it is smaller than the sum of its proper divisors (2350288176).

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

1444242144 is a wasteful number, since it uses less digits than its factorization.

1444242144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13483 (or 13475 counting only the distinct ones).

The product of its digits is 16384, while the sum is 30.

The square root of 1444242144 is about 38003.1859717051. The cubic root of 1444242144 is about 1130.3510392910.

Adding to 1444242144 its reverse (4412424441), we get a palindrome (5856666585).

The spelling of 1444242144 in words is "one billion, four hundred forty-four million, two hundred forty-two thousand, one hundred forty-four".