1444421244 has 96 divisors (see below), whose sum is σ = 4023452160. Its totient is φ = 394682112.

The previous prime is 1444421219. The next prime is 1444421261. The reversal of 1444421244 is 4421244441.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 179434 + ... + 187310.

It is an arithmetic number, because the mean of its divisors is an integer number (41910960).

Almost surely, 2^1444421244 is an apocalyptic number.

1444421244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444421244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2011726080).

1444421244 is an abundant number, since it is smaller than the sum of its proper divisors (2579030916).

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

1444421244 is a wasteful number, since it uses less digits than its factorization.

1444421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987 (or 7985 counting only the distinct ones).

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

The square root of 1444421244 is about 38005.5422800412. The cubic root of 1444421244 is about 1130.3977621816.

Adding to 1444421244 its reverse (4421244441), we get a palindrome (5865665685).

The spelling of 1444421244 in words is "one billion, four hundred forty-four million, four hundred twenty-one thousand, two hundred forty-four".