408811 has 12 divisors (see below), whose sum is σ = 461160. Its totient is φ = 361920.

The previous prime is 408809. The next prime is 408817. The reversal of 408811 is 118804.

It is not a de Polignac number, because 408811 - 2¹ = 408809 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (408817) 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, 6900 + ... + 6958.

It is an arithmetic number, because the mean of its divisors is an integer number (38430).

2⁴⁰⁸⁸¹¹ is an apocalyptic number.

408811 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

408811 is a deficient number, since it is larger than the sum of its proper divisors (52349).

408811 is a wasteful number, since it uses less digits than its factorization.

408811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 408811 is about 639.3832966226. The cubic root of 408811 is about 74.2177056141.

The spelling of 408811 in words is "four hundred eight thousand, eight hundred eleven".