385231 has 8 divisors (see below), whose sum is σ = 480384. Its totient is φ = 300120.

The previous prime is 385223. The next prime is 385249. The reversal of 385231 is 132583.

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

It is a cyclic number.

It is not a de Polignac number, because 385231 - 2³ = 385223 is a prime.

It is a super-2 number, since 2×385231² = 296805846722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385261) by changing a digit.

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, 2425 + ... + 2578.

It is an arithmetic number, because the mean of its divisors is an integer number (60048).

2³⁸⁵²³¹ is an apocalyptic number.

385231 is a deficient number, since it is larger than the sum of its proper divisors (95153).

385231 is a wasteful number, since it uses less digits than its factorization.

385231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5021.

The product of its digits is 720, while the sum is 22.

The square root of 385231 is about 620.6697994908. The cubic root of 385231 is about 72.7624101517.

It can be divided in two parts, 3852 and 31, that added together give a palindrome (3883).

The spelling of 385231 in words is "three hundred eighty-five thousand, two hundred thirty-one".