144221304 has 32 divisors (see below), whose sum is σ = 360933120. Its totient is φ = 48023136.

The previous prime is 144221303. The next prime is 144221309. The reversal of 144221304 is 403122441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25329 + ... + 30495.

It is an arithmetic number, because the mean of its divisors is an integer number (11279160).

Almost surely, 2^144221304 is an apocalyptic number.

It is an amenable number.

144221304 is an abundant number, since it is smaller than the sum of its proper divisors (216711816).

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

144221304 is a wasteful number, since it uses less digits than its factorization.

144221304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6339 (or 6335 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 144221304 is about 12009.2174599347. The cubic root of 144221304 is about 524.4166509232.

Adding to 144221304 its reverse (403122441), we get a palindrome (547343745).

The spelling of 144221304 in words is "one hundred forty-four million, two hundred twenty-one thousand, three hundred four".