144242444 has 6 divisors (see below), whose sum is σ = 252424284. Its totient is φ = 72121220.

The previous prime is 144242431. The next prime is 144242447. The reversal of 144242444 is 444242441.

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

It is not an unprimeable number, because it can be changed into a prime (144242447) by changing a digit.

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 as a sum of consecutive naturals, namely, 18030302 + ... + 18030309.

It is an arithmetic number, because the mean of its divisors is an integer number (42070714).

Almost surely, 2^144242444 is an apocalyptic number.

It is an amenable number.

144242444 is a deficient number, since it is larger than the sum of its proper divisors (108181840).

144242444 is a wasteful number, since it uses less digits than its factorization.

144242444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36060615 (or 36060613 counting only the distinct ones).

The product of its digits is 16384, while the sum is 29.

The square root of 144242444 is about 12010.0975849491. The cubic root of 144242444 is about 524.4422727189.

Adding to 144242444 its reverse (444242441), we get a palindrome (588484885).

The spelling of 144242444 in words is "one hundred forty-four million, two hundred forty-two thousand, four hundred forty-four".