144441442 has 16 divisors (see below), whose sum is σ = 222486264. Its totient is φ = 70288000.

The previous prime is 144441419. The next prime is 144441443. The reversal of 144441442 is 244144441.

It can be written as a sum of positive squares in 4 ways, for example, as 106729561 + 37711881 = 10331^2 + 6141^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144441442.

It is not an unprimeable number, because it can be changed into a prime (144441443) 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, 35892 + ... + 39712.

Almost surely, 2^144441442 is an apocalyptic number.

144441442 is a deficient number, since it is larger than the sum of its proper divisors (78044822).

144441442 is a wasteful number, since it uses less digits than its factorization.

144441442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4325.

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

The square root of 144441442 is about 12018.3793416583. The cubic root of 144441442 is about 524.6833367773.

Adding to 144441442 its reverse (244144441), we get a palindrome (388585883).

The spelling of 144441442 in words is "one hundred forty-four million, four hundred forty-one thousand, four hundred forty-two".