408485 has 16 divisors (see below), whose sum is σ = 611712. Its totient is φ = 254400.

The previous prime is 408479. The next prime is 408491. The reversal of 408485 is 584804.

408485 = 368² + 369² + 370².

It is an interprime number because it is at equal distance from previous prime (408479) and next prime (408491).

It is not a de Polignac number, because 408485 - 2⁴ = 408469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 146 + ... + 915.

It is an arithmetic number, because the mean of its divisors is an integer number (38232).

2⁴⁰⁸⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

408485 is a deficient number, since it is larger than the sum of its proper divisors (203227).

408485 is a wasteful number, since it uses less digits than its factorization.

408485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 408485 is about 639.1283126259. The cubic root of 408485 is about 74.1979724479.

The spelling of 408485 in words is "four hundred eight thousand, four hundred eighty-five".