238642 has 4 divisors (see below), whose sum is σ = 357966. Its totient is φ = 119320.

The previous prime is 238639. The next prime is 238649. The reversal of 238642 is 246832.

It is a happy number.

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., 160801 + 77841 = 401^2 + 279^2 .

It is not an unprimeable number, because it can be changed into a prime (238649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59659 + ... + 59662.

2²³⁸⁶⁴² is an apocalyptic number.

238642 is a deficient number, since it is larger than the sum of its proper divisors (119324).

238642 is a wasteful number, since it uses less digits than its factorization.

238642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119323.

The product of its digits is 2304, while the sum is 25.

The square root of 238642 is about 488.5099794272. The cubic root of 238642 is about 62.0272166321.

It can be divided in two parts, 2 and 38642, that multiplied together give a square (77284 = 278²).

The spelling of 238642 in words is "two hundred thirty-eight thousand, six hundred forty-two".