144442433140220 has 24 divisors (see below), whose sum is σ = 303366618170784. Its totient is φ = 57769828765376.

The previous prime is 144442433140219. The next prime is 144442433140289. The reversal of 144442433140220 is 22041334244441.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 446364887 + ... + 446688366.

It is an arithmetic number, because the mean of its divisors is an integer number (12640275757116).

Almost surely, 2^{144442433140220} is an apocalyptic number.

144442433140220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144442433140220 is an abundant number, since it is smaller than the sum of its proper divisors (158924185030564).

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

144442433140220 is a wasteful number, since it uses less digits than its factorization.

144442433140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893061349 (or 893061347 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

Adding to 144442433140220 its reverse (22041334244441), we get a palindrome (166483767384661).

The spelling of 144442433140220 in words is "one hundred forty-four trillion, four hundred forty-two billion, four hundred thirty-three million, one hundred forty thousand, two hundred twenty".