384285 has 32 divisors (see below), whose sum is σ = 715392. Its totient is φ = 174080.

The previous prime is 384277. The next prime is 384287. The reversal of 384285 is 582483.

It is not a de Polignac number, because 384285 - 2³ = 384277 is a prime.

It is a super-2 number, since 2×384285² = 295349922450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384285.

It is not an unprimeable number, because it can be changed into a prime (384287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2737 + ... + 2873.

It is an arithmetic number, because the mean of its divisors is an integer number (22356).

2³⁸⁴²⁸⁵ is an apocalyptic number.

It is an amenable number.

384285 is a deficient number, since it is larger than the sum of its proper divisors (331107).

384285 is a wasteful number, since it uses less digits than its factorization.

384285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173.

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

The square root of 384285 is about 619.9072511271. The cubic root of 384285 is about 72.7028011890.

The spelling of 384285 in words is "three hundred eighty-four thousand, two hundred eighty-five".