408285 has 24 divisors (see below), whose sum is σ = 727584. Its totient is φ = 211680.

The previous prime is 408283. The next prime is 408311. The reversal of 408285 is 582804.

It is not a de Polignac number, because 408285 - 2¹ = 408283 is a prime.

408285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1830 + ... + 2040.

It is an arithmetic number, because the mean of its divisors is an integer number (30316).

2⁴⁰⁸²⁸⁵ is an apocalyptic number.

408285 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

408285 is a deficient number, since it is larger than the sum of its proper divisors (319299).

408285 is a wasteful number, since it uses less digits than its factorization.

408285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 408285 is about 638.9718303650. The cubic root of 408285 is about 74.1858610142.

The spelling of 408285 in words is "four hundred eight thousand, two hundred eighty-five".