238530 has 16 divisors (see below), whose sum is σ = 572544. Its totient is φ = 63600.

The previous prime is 238529. The next prime is 238531. The reversal of 238530 is 35832.

238530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (238529) and next prime (238531).

It is a junction number, because it is equal to n+sod(n) for n = 238497 and 238506.

It is not an unprimeable number, because it can be changed into a prime (238531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3946 + ... + 4005.

It is an arithmetic number, because the mean of its divisors is an integer number (35784).

2²³⁸⁵³⁰ is an apocalyptic number.

238530 is an abundant number, since it is smaller than the sum of its proper divisors (334014).

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

238530 is a wasteful number, since it uses less digits than its factorization.

238530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 238530 is about 488.3953316730. The cubic root of 238530 is about 62.0175115294.

It can be divided in two parts, 2385 and 30, that added together give a triangular number (2415 = T₆₉).

The spelling of 238530 in words is "two hundred thirty-eight thousand, five hundred thirty".