144444222 has 80 divisors (see below), whose sum is σ = 352365552. Its totient is φ = 43960320.

The previous prime is 144444211. The next prime is 144444299. The reversal of 144444222 is 222444441.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 225022 + ... + 225662.

Almost surely, 2^144444222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144444222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176182776).

144444222 is an abundant number, since it is smaller than the sum of its proper divisors (207921330).

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

144444222 is a wasteful number, since it uses less digits than its factorization.

144444222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 766 counting only the distinct ones).

The product of its digits is 8192, while the sum is 27.

The square root of 144444222 is about 12018.4949972948. The cubic root of 144444222 is about 524.6867028710.

Adding to 144444222 its reverse (222444441), we get a palindrome (366888663).

The spelling of 144444222 in words is "one hundred forty-four million, four hundred forty-four thousand, two hundred twenty-two".