142242342 has 16 divisors (see below), whose sum is σ = 310347072. Its totient is φ = 43103720.

The previous prime is 142242311. The next prime is 142242367. The reversal of 142242342 is 243242241.

It is a congruent number.

It is an unprimeable number.

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, 1077528 + ... + 1077659.

It is an arithmetic number, because the mean of its divisors is an integer number (19396692).

Almost surely, 2^142242342 is an apocalyptic number.

142242342 is an abundant number, since it is smaller than the sum of its proper divisors (168104730).

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

142242342 is a wasteful number, since it uses less digits than its factorization.

142242342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2155203.

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

The square root of 142242342 is about 11926.5393974950. The cubic root of 142242342 is about 522.0069654537.

Adding to 142242342 its reverse (243242241), we get a palindrome (385484583).

The spelling of 142242342 in words is "one hundred forty-two million, two hundred forty-two thousand, three hundred forty-two".