144440242 has 16 divisors (see below), whose sum is σ = 235929600. Its totient is φ = 66059280.

The previous prime is 144440239. The next prime is 144440243. The reversal of 144440242 is 242044441.

144440242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (144440243) 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, 64434 + ... + 66637.

It is an arithmetic number, because the mean of its divisors is an integer number (14745600).

Almost surely, 2^144440242 is an apocalyptic number.

144440242 is a deficient number, since it is larger than the sum of its proper divisors (91489358).

144440242 is a wasteful number, since it uses less digits than its factorization.

144440242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131121.

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

The square root of 144440242 is about 12018.3294180181. The cubic root of 144440242 is about 524.6818837738.

Adding to 144440242 its reverse (242044441), we get a palindrome (386484683).

The spelling of 144440242 in words is "one hundred forty-four million, four hundred forty thousand, two hundred forty-two".