144420222 has 16 divisors (see below), whose sum is σ = 289512720. Its totient is φ = 48028032.

The previous prime is 144420193. The next prime is 144420223. The reversal of 144420222 is 222024441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144420223) 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 7 ways as a sum of consecutive naturals, for example, 25197 + ... + 30392.

It is an arithmetic number, because the mean of its divisors is an integer number (18094545).

Almost surely, 2^144420222 is an apocalyptic number.

144420222 is an abundant number, since it is smaller than the sum of its proper divisors (145092498).

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

144420222 is a wasteful number, since it uses less digits than its factorization.

144420222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56027.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 144420222 is about 12017.4964946947. The cubic root of 144420222 is about 524.6576416454.

Adding to 144420222 its reverse (222024441), we get a palindrome (366444663).

The spelling of 144420222 in words is "one hundred forty-four million, four hundred twenty thousand, two hundred twenty-two".