144220 has 12 divisors (see below), whose sum is σ = 302904. Its totient is φ = 57680.

The previous prime is 144203. The next prime is 144223. The reversal of 144220 is 22441.

144220 = T₁₄₉ + T₁₅₀ + ... + T₁₆₀.

144220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 144220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144223) by changing a digit.

144220 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3586 + ... + 3625.

It is an arithmetic number, because the mean of its divisors is an integer number (25242).

2¹⁴⁴²²⁰ is an apocalyptic number.

144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144220 is an abundant number, since it is smaller than the sum of its proper divisors (158684).

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

144220 is a wasteful number, since it uses less digits than its factorization.

144220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7220 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 144220 is about 379.7630840406. The cubic root of 144220 is about 52.4415070386.

Adding to 144220 its reverse (22441), we get a palindrome (166661).

The spelling of 144220 in words is "one hundred forty-four thousand, two hundred twenty", and thus it is an iban number.