404204406 has 8 divisors (see below), whose sum is σ = 808408824. Its totient is φ = 134734800.

The previous prime is 404204401. The next prime is 404204413. The reversal of 404204406 is 604402404.

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

404204406 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404204401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33683695 + ... + 33683706.

It is an arithmetic number, because the mean of its divisors is an integer number (101051103).

Almost surely, 2^404204406 is an apocalyptic number.

404204406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

404204406 is a wasteful number, since it uses less digits than its factorization.

404204406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67367406.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 404204406 is about 20104.8353885328. The cubic root of 404204406 is about 739.3788347095.

The spelling of 404204406 in words is "four hundred four million, two hundred four thousand, four hundred six".