938242 has 4 divisors (see below), whose sum is σ = 1407366. Its totient is φ = 469120.

The previous prime is 938233. The next prime is 938243. The reversal of 938242 is 242839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 242839 = 19 ⋅12781.

It can be written as a sum of positive squares in only one way, i.e., 687241 + 251001 = 829^2 + 501^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 938242.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938243) 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, 234559 + ... + 234562.

2⁹³⁸²⁴² is an apocalyptic number.

938242 is a deficient number, since it is larger than the sum of its proper divisors (469124).

938242 is a wasteful number, since it uses less digits than its factorization.

938242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469123.

The product of its digits is 3456, while the sum is 28.

The square root of 938242 is about 968.6289279182. The cubic root of 938242 is about 97.8975049472.

The spelling of 938242 in words is "nine hundred thirty-eight thousand, two hundred forty-two".