404008129 has 8 divisors (see below), whose sum is σ = 462499200. Its totient is φ = 345710976.

The previous prime is 404008123. The next prime is 404008159. The reversal of 404008129 is 921800404.

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 404008129 - 2⁵ = 404008097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404008097 and 404008106.

It is not an unprimeable number, because it can be changed into a prime (404008123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43984 + ... + 52369.

It is an arithmetic number, because the mean of its divisors is an integer number (57812400).

Almost surely, 2^404008129 is an apocalyptic number.

It is an amenable number.

404008129 is a deficient number, since it is larger than the sum of its proper divisors (58491071).

404008129 is an equidigital number, since it uses as much as digits as its factorization.

404008129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96959.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 404008129 is about 20099.9534576576. The cubic root of 404008129 is about 739.2591373866.

The spelling of 404008129 in words is "four hundred four million, eight thousand, one hundred twenty-nine".