144441441023440 has 80 divisors (see below), whose sum is σ = 387906372671040. Its totient is φ = 49434503874560.

The previous prime is 144441441023387. The next prime is 144441441023459. The reversal of 144441441023440 is 44320144144441.

It is a tau number, because it is divible by the number of its divisors (80).

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 = 144441441023393 and 144441441023402.

It is a congruent number.

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, 4827573310 + ... + 4827603229.

It is an arithmetic number, because the mean of its divisors is an integer number (4848829658388).

Almost surely, 2^{144441441023440} is an apocalyptic number.

144441441023440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144441441023440 is an abundant number, since it is smaller than the sum of its proper divisors (243464931647600).

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

144441441023440 is a wasteful number, since it uses less digits than its factorization.

144441441023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9655176580 (or 9655176574 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

Adding to 144441441023440 its reverse (44320144144441), we get a palindrome (188761585167881).

The spelling of 144441441023440 in words is "one hundred forty-four trillion, four hundred forty-one billion, four hundred forty-one million, twenty-three thousand, four hundred forty".