408818 has 8 divisors (see below), whose sum is σ = 622080. Its totient is φ = 201460.

The previous prime is 408817. The next prime is 408841. The reversal of 408818 is 818804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×408818³ = 204979902633358296, which contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1298 + ... + 1581.

It is an arithmetic number, because the mean of its divisors is an integer number (77760).

2⁴⁰⁸⁸¹⁸ is an apocalyptic number.

408818 is a deficient number, since it is larger than the sum of its proper divisors (213262).

408818 is a wasteful number, since it uses less digits than its factorization.

408818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952.

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 408818 is about 639.3887706239. The cubic root of 408818 is about 74.2181292173.

The spelling of 408818 in words is "four hundred eight thousand, eight hundred eighteen".