144223424 has 14 divisors (see below), whose sum is σ = 286193484. Its totient is φ = 72111680.

The previous prime is 144223421. The next prime is 144223477. The reversal of 144223424 is 424322441.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 144223393 and 144223402.

It is not an unprimeable number, because it can be changed into a prime (144223421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126682 + ... + 1126809.

Almost surely, 2^144223424 is an apocalyptic number.

It is an amenable number.

144223424 is a deficient number, since it is larger than the sum of its proper divisors (141970060).

144223424 is an equidigital number, since it uses as much as digits as its factorization.

144223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253503 (or 2253493 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 144223424 is about 12009.3057251450. The cubic root of 144223424 is about 524.4192204877.

Adding to 144223424 its reverse (424322441), we get a palindrome (568545865).

The spelling of 144223424 in words is "one hundred forty-four million, two hundred twenty-three thousand, four hundred twenty-four".