404408005 has 8 divisors (see below), whose sum is σ = 489111552. Its totient is φ = 320978448.

The previous prime is 404407957. The next prime is 404408029. The reversal of 404408005 is 500804404.

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

It is a cyclic number.

It is not a de Polignac number, because 404408005 - 2⁷ = 404407877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317797 + ... + 319066.

It is an arithmetic number, because the mean of its divisors is an integer number (61138944).

Almost surely, 2^404408005 is an apocalyptic number.

It is an amenable number.

404408005 is a deficient number, since it is larger than the sum of its proper divisors (84703547).

404408005 is a wasteful number, since it uses less digits than its factorization.

404408005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636995.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 404408005 is about 20109.8981847249. The cubic root of 404408005 is about 739.5029563346.

The spelling of 404408005 in words is "four hundred four million, four hundred eight thousand, five".