144420242 has 8 divisors (see below), whose sum is σ = 219863856. Its totient is φ = 71132292.

The previous prime is 144420223. The next prime is 144420251. The reversal of 144420242 is 242024441.

144420242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538748 + ... + 539015.

It is an arithmetic number, because the mean of its divisors is an integer number (27482982).

Almost surely, 2^144420242 is an apocalyptic number.

144420242 is a deficient number, since it is larger than the sum of its proper divisors (75443614).

144420242 is a wasteful number, since it uses less digits than its factorization.

144420242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077832.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 144420242 is about 12017.4973268148. The cubic root of 144420242 is about 524.6576658645.

Adding to 144420242 its reverse (242024441), we get a palindrome (386444683).

The spelling of 144420242 in words is "one hundred forty-four million, four hundred twenty thousand, two hundred forty-two".