238730 has 8 divisors (see below), whose sum is σ = 429732. Its totient is φ = 95488.

The previous prime is 238729. The next prime is 238747. The reversal of 238730 is 37832.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 18769 = 469^2 + 137^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 238696 and 238705.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11927 + ... + 11946.

2²³⁸⁷³⁰ is an apocalyptic number.

238730 is a deficient number, since it is larger than the sum of its proper divisors (191002).

238730 is a wasteful number, since it uses less digits than its factorization.

238730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23880.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 238730 is about 488.6000409333. The cubic root of 238730 is about 62.0348399399.

The spelling of 238730 in words is "two hundred thirty-eight thousand, seven hundred thirty".