144404142 has 32 divisors (see below), whose sum is σ = 305061120. Its totient is φ = 45443520.

The previous prime is 144404129. The next prime is 144404149. The reversal of 144404142 is 241404441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144404149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33418 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (9533160).

Almost surely, 2^144404142 is an apocalyptic number.

144404142 is an abundant number, since it is smaller than the sum of its proper divisors (160656978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144404142 is a wasteful number, since it uses less digits than its factorization.

144404142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 144404142 is about 12016.8274515364. The cubic root of 144404142 is about 524.6381688230.

Adding to 144404142 its reverse (241404441), we get a palindrome (385808583).

The spelling of 144404142 in words is "one hundred forty-four million, four hundred four thousand, one hundred forty-two".