238485 has 16 divisors (see below), whose sum is σ = 411264. Its totient is φ = 117312.

The previous prime is 238481. The next prime is 238499. The reversal of 238485 is 584832.

It is not a de Polignac number, because 238485 - 2² = 238481 is a prime.

It is a Curzon number.

238485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417 + ... + 806.

It is an arithmetic number, because the mean of its divisors is an integer number (25704).

2²³⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

238485 is a deficient number, since it is larger than the sum of its proper divisors (172779).

238485 is a wasteful number, since it uses less digits than its factorization.

238485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244.

The product of its digits is 7680, while the sum is 30.

The square root of 238485 is about 488.3492602636. The cubic root of 238485 is about 62.0136113023.

The spelling of 238485 in words is "two hundred thirty-eight thousand, four hundred eighty-five".