404994 has 8 divisors (see below), whose sum is σ = 810000. Its totient is φ = 134996.

The previous prime is 404983. The next prime is 405001. The reversal of 404994 is 499404.

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

404994 is an admirable number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 404994.

It is an unprimeable number.

404994 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33744 + ... + 33755.

It is an arithmetic number, because the mean of its divisors is an integer number (101250).

2⁴⁰⁴⁹⁹⁴ is an apocalyptic number.

404994 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.

404994 is a wasteful number, since it uses less digits than its factorization.

404994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67504.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 404994 is about 636.3913890052. The cubic root of 404994 is about 73.9859968634.

The spelling of 404994 in words is "four hundred four thousand, nine hundred ninety-four".