404112409 has 8 divisors (see below), whose sum is σ = 424688000. Its totient is φ = 384044976.

The previous prime is 404112403. The next prime is 404112431. The reversal of 404112409 is 904211404.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404112409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404112403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125409 + ... + 128590.

It is an arithmetic number, because the mean of its divisors is an integer number (53086000).

Almost surely, 2^404112409 is an apocalyptic number.

It is an amenable number.

404112409 is a deficient number, since it is larger than the sum of its proper divisors (20575591).

404112409 is a wasteful number, since it uses less digits than its factorization.

404112409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254079.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 404112409 is about 20102.5473261475. The cubic root of 404112409 is about 739.3227361987.

The spelling of 404112409 in words is "four hundred four million, one hundred twelve thousand, four hundred nine".