4144443431320 has 32 divisors (see below), whose sum is σ = 9325090746720. Its totient is φ = 1657760834560.

The previous prime is 4144443431257. The next prime is 4144443431353. The reversal of 4144443431320 is 231343444414.

It is a happy number.

It is a super-2 number, since 2×4144443431320² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4144443431320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4038669 + ... + 4959811.

It is an arithmetic number, because the mean of its divisors is an integer number (291409085835).

Almost surely, 2^{4144443431320} is an apocalyptic number.

4144443431320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4144443431320 is an abundant number, since it is smaller than the sum of its proper divisors (5180647315400).

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

4144443431320 is a wasteful number, since it uses less digits than its factorization.

4144443431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033635 (or 1033631 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 4144443431320 its reverse (231343444414), we get a palindrome (4375786875734).

The spelling of 4144443431320 in words is "four trillion, one hundred forty-four billion, four hundred forty-three million, four hundred thirty-one thousand, three hundred twenty".