144422224 has 20 divisors (see below), whose sum is σ = 280082644. Its totient is φ = 72142848.

The previous prime is 144422219. The next prime is 144422237. The reversal of 144422224 is 422224441.

It can be written as a sum of positive squares in 2 ways, for example, as 79780624 + 64641600 = 8932^2 + 8040^2 .

It is a nude number because it is divisible by every one of its digits.

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 3 ways as a sum of consecutive naturals, for example, 16144 + ... + 23440.

Almost surely, 2^144422224 is an apocalyptic number.

It is an amenable number.

144422224 is a deficient number, since it is larger than the sum of its proper divisors (135660420).

144422224 is a wasteful number, since it uses less digits than its factorization.

144422224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542 (or 8536 counting only the distinct ones).

The product of its digits is 4096, while the sum is 25.

The square root of 144422224 is about 12017.5797896249. The cubic root of 144422224 is about 524.6600659591.

Adding to 144422224 its reverse (422224441), we get a palindrome (566646665).

It can be divided in two parts, 1 and 44422224, that added together give a square (44422225 = 6665²).

The spelling of 144422224 in words is "one hundred forty-four million, four hundred twenty-two thousand, two hundred twenty-four".