144443331230440 has 128 divisors (see below), whose sum is σ = 359471851516800. Its totient is φ = 51794896158720.

The previous prime is 144443331230417. The next prime is 144443331230449. The reversal of 144443331230440 is 44032133344441.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 144443331230393 and 144443331230402.

It is not an unprimeable number, because it can be changed into a prime (144443331230449) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159924831 + ... + 160825489.

It is an arithmetic number, because the mean of its divisors is an integer number (2808373839975).

Almost surely, 2^{144443331230440} is an apocalyptic number.

144443331230440 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 144443331230440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179735925758400).

144443331230440 is an abundant number, since it is smaller than the sum of its proper divisors (215028520286360).

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

144443331230440 is a wasteful number, since it uses less digits than its factorization.

144443331230440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905747 (or 905743 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 144443331230440 its reverse (44032133344441), we get a palindrome (188475464574881).

The spelling of 144443331230440 in words is "one hundred forty-four trillion, four hundred forty-three billion, three hundred thirty-one million, two hundred thirty thousand, four hundred forty".