404000005 has 8 divisors (see below), whose sum is σ = 485927424. Its totient is φ = 322448400.

The previous prime is 403999993. The next prime is 404000033. The reversal of 404000005 is 500000404.

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

It is not a de Polignac number, because 404000005 - 2¹⁵ = 403967237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91581 + ... + 95890.

It is an arithmetic number, because the mean of its divisors is an integer number (60740928).

Almost surely, 2^404000005 is an apocalyptic number.

It is an amenable number.

404000005 is a deficient number, since it is larger than the sum of its proper divisors (81927419).

404000005 is a wasteful number, since it uses less digits than its factorization.

404000005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187907.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 404000005 is about 20099.7513666214. The cubic root of 404000005 is about 739.2541822211.

Adding to 404000005 its reverse (500000404), we get a palindrome (904000409).

The spelling of 404000005 in words is "four hundred four million, five", and thus it is an aban number.