404004066 has 8 divisors (see below), whose sum is σ = 808008144. Its totient is φ = 134668020.

The previous prime is 404004061. The next prime is 404004091. The reversal of 404004066 is 660400404.

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

404004066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (404004061) 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, 33667000 + ... + 33667011.

It is an arithmetic number, because the mean of its divisors is an integer number (101001018).

Almost surely, 2^404004066 is an apocalyptic number.

404004066 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.

404004066 is a wasteful number, since it uses less digits than its factorization.

404004066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67334016.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 404004066 is about 20099.8523875177. The cubic root of 404004066 is about 739.2566592022.

The spelling of 404004066 in words is "four hundred four million, four thousand, sixty-six".