238540 has 12 divisors (see below), whose sum is σ = 500976. Its totient is φ = 95408.

The previous prime is 238531. The next prime is 238547. The reversal of 238540 is 45832.

It is not an unprimeable number, because it can be changed into a prime (238547) by changing a digit.

238540 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5944 + ... + 5983.

It is an arithmetic number, because the mean of its divisors is an integer number (41748).

2²³⁸⁵⁴⁰ is an apocalyptic number.

238540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

238540 is an abundant number, since it is smaller than the sum of its proper divisors (262436).

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

238540 is a wasteful number, since it uses less digits than its factorization.

238540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11936 (or 11934 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 238540 is about 488.4055691738. The cubic root of 238540 is about 62.0183781799.

The spelling of 238540 in words is "two hundred thirty-eight thousand, five hundred forty".