1444213023220 has 96 divisors (see below), whose sum is σ = 3354551625600. Its totient is φ = 522232747520.

The previous prime is 1444213023157. The next prime is 1444213023247. The reversal of 1444213023220 is 223203124441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4613436 + ... + 4916524.

It is an arithmetic number, because the mean of its divisors is an integer number (34943246100).

Almost surely, 2^{1444213023220} is an apocalyptic number.

1444213023220 is a gapful number since it is divisible by the number (10) 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 1444213023220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677275812800).

1444213023220 is an abundant number, since it is smaller than the sum of its proper divisors (1910338602380).

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

1444213023220 is a wasteful number, since it uses less digits than its factorization.

1444213023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303310 (or 303286 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1444213023220 its reverse (223203124441), we get a palindrome (1667416147661).

The spelling of 1444213023220 in words is "one trillion, four hundred forty-four billion, two hundred thirteen million, twenty-three thousand, two hundred twenty".