144321443420 has 144 divisors (see below), whose sum is σ = 386915139072. Its totient is φ = 44713388160.

The previous prime is 144321443419. The next prime is 144321443467. The reversal of 144321443420 is 24344123441.

144321443420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×144321443420² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1760177 + ... + 1840343.

It is an arithmetic number, because the mean of its divisors is an integer number (2686910688).

Almost surely, 2^144321443420 is an apocalyptic number.

144321443420 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 144321443420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193457569536).

144321443420 is an abundant number, since it is smaller than the sum of its proper divisors (242593695652).

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

144321443420 is a wasteful number, since it uses less digits than its factorization.

144321443420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80368 (or 80359 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 144321443420 its reverse (24344123441), we get a palindrome (168665566861).

The spelling of 144321443420 in words is "one hundred forty-four billion, three hundred twenty-one million, four hundred forty-three thousand, four hundred twenty".