1444111433220 has 48 divisors (see below), whose sum is σ = 4044407552640. Its totient is φ = 385011092736.

The previous prime is 1444111433203. The next prime is 1444111433231. The reversal of 1444111433220 is 223341114441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2391897 + ... + 2934176.

It is an arithmetic number, because the mean of its divisors is an integer number (84258490680).

Almost surely, 2^{1444111433220} is an apocalyptic number.

1444111433220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444111433220 is an abundant number, since it is smaller than the sum of its proper divisors (2600296119420).

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

1444111433220 is a wasteful number, since it uses less digits than its factorization.

1444111433220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330604 (or 5330602 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 1444111433220 its reverse (223341114441), we get a palindrome (1667452547661).

The spelling of 1444111433220 in words is "one trillion, four hundred forty-four billion, one hundred eleven million, four hundred thirty-three thousand, two hundred twenty".