42338 has 4 divisors (see below), whose sum is σ = 63510. Its totient is φ = 21168.

The previous prime is 42337. The next prime is 42349. The reversal of 42338 is 83324.

42338 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 24649 + 17689 = 157^2 + 133^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42338.

It is not an unprimeable number, because it can be changed into a prime (42331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10583 + ... + 10586.

2⁴²³³⁸ is an apocalyptic number.

42338 is a deficient number, since it is larger than the sum of its proper divisors (21172).

42338 is a wasteful number, since it uses less digits than its factorization.

42338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21171.

The product of its digits is 576, while the sum is 20.

The square root of 42338 is about 205.7619984351. The cubic root of 42338 is about 34.8532632198.

It can be divided in two parts, 42 and 338, that multiplied together give a triangular number (14196 = T₁₆₈).

The spelling of 42338 in words is "forty-two thousand, three hundred thirty-eight".