406285 has 16 divisors (see below), whose sum is σ = 544320. Its totient is φ = 288640.

The previous prime is 406271. The next prime is 406309. The reversal of 406285 is 582604.

It is not a de Polignac number, because 406285 - 2⁵ = 406253 is a prime.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4521 + ... + 4609.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2⁴⁰⁶²⁸⁵ is an apocalyptic number.

It is an amenable number.

406285 is a deficient number, since it is larger than the sum of its proper divisors (138035).

406285 is a wasteful number, since it uses less digits than its factorization.

406285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 406285 is about 637.4048948667. The cubic root of 406285 is about 74.0645285694.

Adding to 406285 its reverse (582604), we get a palindrome (988889).

The spelling of 406285 in words is "four hundred six thousand, two hundred eighty-five".