144331242 has 16 divisors (see below), whose sum is σ = 314904672. Its totient is φ = 43736720.

The previous prime is 144331223. The next prime is 144331249. The reversal of 144331242 is 242133441.

It is not an unprimeable number, because it can be changed into a prime (144331249) 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 in 7 ways as a sum of consecutive naturals, for example, 1093353 + ... + 1093484.

It is an arithmetic number, because the mean of its divisors is an integer number (19681542).

Almost surely, 2^144331242 is an apocalyptic number.

144331242 is an abundant number, since it is smaller than the sum of its proper divisors (170573430).

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

144331242 is a wasteful number, since it uses less digits than its factorization.

144331242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186853.

The product of its digits is 2304, while the sum is 24.

The square root of 144331242 is about 12013.7938221030. The cubic root of 144331242 is about 524.5498690468.

Adding to 144331242 its reverse (242133441), we get a palindrome (386464683).

The spelling of 144331242 in words is "one hundred forty-four million, three hundred thirty-one thousand, two hundred forty-two".