285030 has 24 divisors (see below), whose sum is σ = 741312. Its totient is φ = 75984.

The previous prime is 285023. The next prime is 285031. The reversal of 285030 is 30582.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 284994 and 285012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1494 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (30888).

2²⁸⁵⁰³⁰ is an apocalyptic number.

285030 is an abundant number, since it is smaller than the sum of its proper divisors (456282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

285030 is a wasteful number, since it uses less digits than its factorization.

285030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180 (or 3177 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 285030 is about 533.8820094365. The cubic root of 285030 is about 65.8107526396.

The spelling of 285030 in words is "two hundred eighty-five thousand, thirty".