4440321220144 has 20 divisors (see below), whose sum is σ = 8603183472624. Its totient is φ = 2220144840128.

The previous prime is 4440321220141. The next prime is 4440321220187. The reversal of 4440321220144 is 4410221230444.

It is a happy number.

It is a super-2 number, since 2×4440321220144² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4440321220141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1532229 + ... + 3350875.

Almost surely, 2^{4440321220144} is an apocalyptic number.

It is an amenable number.

4440321220144 is a deficient number, since it is larger than the sum of its proper divisors (4162862252480).

4440321220144 is a wasteful number, since it uses less digits than its factorization.

4440321220144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1971252 (or 1971246 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4440321220144 its reverse (4410221230444), we get a palindrome (8850542450588).

The spelling of 4440321220144 in words is "four trillion, four hundred forty billion, three hundred twenty-one million, two hundred twenty thousand, one hundred forty-four".