408085806 has 16 divisors (see below), whose sum is σ = 816782544. Its totient is φ = 135926784.

The previous prime is 408085787. The next prime is 408085807. The reversal of 408085806 is 608580804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408085807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16531 + ... + 33006.

It is an arithmetic number, because the mean of its divisors is an integer number (51048909).

Almost surely, 2^408085806 is an apocalyptic number.

408085806 is an abundant number, since it is smaller than the sum of its proper divisors (408696738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408085806 is a wasteful number, since it uses less digits than its factorization.

408085806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50915.

The product of its (nonzero) digits is 61440, while the sum is 39.

The square root of 408085806 is about 20201.1337800629. The cubic root of 408085806 is about 741.7379445755.

The spelling of 408085806 in words is "four hundred eight million, eighty-five thousand, eight hundred six".