1444425144 has 64 divisors (see below), whose sum is σ = 3843936000. Its totient is φ = 450996480.

The previous prime is 1444425137. The next prime is 1444425149. The reversal of 1444425144 is 4415244441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444425149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22789 + ... + 58379.

It is an arithmetic number, because the mean of its divisors is an integer number (60061500).

Almost surely, 2^1444425144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444425144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1921968000).

1444425144 is an abundant number, since it is smaller than the sum of its proper divisors (2399510856).

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

1444425144 is a wasteful number, since it uses less digits than its factorization.

1444425144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35708 (or 35704 counting only the distinct ones).

The product of its digits is 40960, while the sum is 33.

The square root of 1444425144 is about 38005.5935883128. The cubic root of 1444425144 is about 1130.3987795550.

Adding to 1444425144 its reverse (4415244441), we get a palindrome (5859669585).

The spelling of 1444425144 in words is "one billion, four hundred forty-four million, four hundred twenty-five thousand, one hundred forty-four".