144203442 has 16 divisors (see below), whose sum is σ = 288925920. Its totient is φ = 47981312.

The previous prime is 144203431. The next prime is 144203443. The reversal of 144203442 is 244302441.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (144203443) 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, 17967 + ... + 24722.

It is an arithmetic number, because the mean of its divisors is an integer number (18057870).

Almost surely, 2^144203442 is an apocalyptic number.

144203442 is an abundant number, since it is smaller than the sum of its proper divisors (144722478).

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

144203442 is a wasteful number, since it uses less digits than its factorization.

144203442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43257.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 144203442 is about 12008.4737581426. The cubic root of 144203442 is about 524.3950001298.

Adding to 144203442 its reverse (244302441), we get a palindrome (388505883).

The spelling of 144203442 in words is "one hundred forty-four million, two hundred three thousand, four hundred forty-two".