144458442 has 12 divisors (see below), whose sum is σ = 312993330. Its totient is φ = 48152808.

The previous prime is 144458437. The next prime is 144458449. The reversal of 144458442 is 244854441.

It can be written as a sum of positive squares in only one way, i.e., 95472441 + 48986001 = 9771^2 + 6999^2 .

It is a junction number, because it is equal to n+sod(n) for n = 144458397 and 144458406.

It is not an unprimeable number, because it can be changed into a prime (144458449) 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 5 ways as a sum of consecutive naturals, for example, 4012717 + ... + 4012752.

Almost surely, 2^144458442 is an apocalyptic number.

144458442 is an abundant number, since it is smaller than the sum of its proper divisors (168534888).

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

144458442 is a wasteful number, since it uses less digits than its factorization.

144458442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8025477 (or 8025474 counting only the distinct ones).

The product of its digits is 81920, while the sum is 36.

The square root of 144458442 is about 12019.0865709504. The cubic root of 144458442 is about 524.7039201285.

The spelling of 144458442 in words is "one hundred forty-four million, four hundred fifty-eight thousand, four hundred forty-two".