238445 has 8 divisors (see below), whose sum is σ = 289536. Its totient is φ = 188496.

The previous prime is 238439. The next prime is 238451. The reversal of 238445 is 544832.

It is an interprime number because it is at equal distance from previous prime (238439) and next prime (238451).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-238445 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (36192).

2²³⁸⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

238445 is a deficient number, since it is larger than the sum of its proper divisors (51091).

238445 is a wasteful number, since it uses less digits than its factorization.

238445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571.

The product of its digits is 3840, while the sum is 26.

The square root of 238445 is about 488.3083042505. The cubic root of 238445 is about 62.0101440218.

The spelling of 238445 in words is "two hundred thirty-eight thousand, four hundred forty-five".