144421343 has 32 divisors (see below), whose sum is σ = 169703424. Its totient is φ = 121680000.

The previous prime is 144421331. The next prime is 144421349. The reversal of 144421343 is 343124441.

It is a cyclic number.

It is not a de Polignac number, because 144421343 - 2⁴ = 144421327 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1102388 + ... + 1102518.

It is an arithmetic number, because the mean of its divisors is an integer number (5303232).

Almost surely, 2^144421343 is an apocalyptic number.

144421343 is a deficient number, since it is larger than the sum of its proper divisors (25282081).

144421343 is a wasteful number, since it uses less digits than its factorization.

144421343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

The product of its digits is 4608, while the sum is 26.

The square root of 144421343 is about 12017.5431349340. The cubic root of 144421343 is about 524.6589991185.

Adding to 144421343 its reverse (343124441), we get a palindrome (487545784).

The spelling of 144421343 in words is "one hundred forty-four million, four hundred twenty-one thousand, three hundred forty-three".