142338 has 16 divisors (see below), whose sum is σ = 325440. Its totient is φ = 40656.

The previous prime is 142327. The next prime is 142357. The reversal of 142338 is 833241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1653 + ... + 1736.

It is an arithmetic number, because the mean of its divisors is an integer number (20340).

2¹⁴²³³⁸ is an apocalyptic number.

142338 is an abundant number, since it is smaller than the sum of its proper divisors (183102).

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

142338 is a wasteful number, since it uses less digits than its factorization.

142338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3401.

The product of its digits is 576, while the sum is 21.

The square root of 142338 is about 377.2770865027. The cubic root of 142338 is about 52.2123955824.

Adding to 142338 its reverse (833241), we get a palindrome (975579).

It can be divided in two parts, 14233 and 8, that added together give a palindrome (14241).

The spelling of 142338 in words is "one hundred forty-two thousand, three hundred thirty-eight".