142442242 has 16 divisors (see below), whose sum is σ = 218856960. Its totient is φ = 69499008.

The previous prime is 142442239. The next prime is 142442257. The reversal of 142442242 is 242244241.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32434 + ... + 36562.

It is an arithmetic number, because the mean of its divisors is an integer number (13678560).

Almost surely, 2^142442242 is an apocalyptic number.

142442242 is a deficient number, since it is larger than the sum of its proper divisors (76414718).

142442242 is a wasteful number, since it uses less digits than its factorization.

142442242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its digits is 4096, while the sum is 25.

The square root of 142442242 is about 11934.9169247213. The cubic root of 142442242 is about 522.2513848175.

Adding to 142442242 its reverse (242244241), we get a palindrome (384686483).

The spelling of 142442242 in words is "one hundred forty-two million, four hundred forty-two thousand, two hundred forty-two".