404996 has 12 divisors (see below), whose sum is σ = 716352. Its totient is φ = 200328.

The previous prime is 404983. The next prime is 405001. The reversal of 404996 is 699404.

It is a happy 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 404996.

It is an unprimeable number.

404996 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, 80 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (59696).

2⁴⁰⁴⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

404996 is a deficient number, since it is larger than the sum of its proper divisors (311356).

404996 is a wasteful number, since it uses less digits than its factorization.

404996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 404996 is about 636.3929603633. The cubic root of 404996 is about 73.9861186526.

The spelling of 404996 in words is "four hundred four thousand, nine hundred ninety-six".