144144442 has 16 divisors (see below), whose sum is σ = 240879240. Its totient is φ = 64233792.

The previous prime is 144144433. The next prime is 144144443. The reversal of 144144442 is 244441441.

144144442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 67914081 + 76230361 = 8241^2 + 8731^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144144442.

It is not an unprimeable number, because it can be changed into a prime (144144443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94833 + ... + 96340.

Almost surely, 2^144144442 is an apocalyptic number.

144144442 is a deficient number, since it is larger than the sum of its proper divisors (96734798).

144144442 is a wasteful number, since it uses less digits than its factorization.

144144442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191217.

The product of its digits is 8192, while the sum is 28.

The square root of 144144442 is about 12006.0169082007. The cubic root of 144144442 is about 524.3234726519.

Adding to 144144442 its reverse (244441441), we get a palindrome (388585883).

The spelling of 144144442 in words is "one hundred forty-four million, one hundred forty-four thousand, four hundred forty-two".