144442292 has 12 divisors (see below), whose sum is σ = 253860516. Its totient is φ = 71910720.

The previous prime is 144442273. The next prime is 144442297. The reversal of 144442292 is 292244441.

It can be written as a sum of positive squares in 2 ways, for example, as 51782416 + 92659876 = 7196^2 + 9626^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144442297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76559 + ... + 78422.

It is an arithmetic number, because the mean of its divisors is an integer number (21155043).

Almost surely, 2^144442292 is an apocalyptic number.

It is an amenable number.

144442292 is a deficient number, since it is larger than the sum of its proper divisors (109418224).

144442292 is a wasteful number, since it uses less digits than its factorization.

144442292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155218 (or 155216 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 144442292 is about 12018.4147041114. The cubic root of 144442292 is about 524.6843659832.

The spelling of 144442292 in words is "one hundred forty-four million, four hundred forty-two thousand, two hundred ninety-two".