404396159 has 2 divisors, whose sum is σ = 404396160. Its totient is φ = 404396158.

The previous prime is 404396149. The next prime is 404396177. The reversal of 404396159 is 951693404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404396159 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404396149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202198079 + 202198080.

It is an arithmetic number, because the mean of its divisors is an integer number (202198080).

Almost surely, 2^404396159 is an apocalyptic number.

404396159 is a deficient number, since it is larger than the sum of its proper divisors (1).

404396159 is an equidigital number, since it uses as much as digits as its factorization.

404396159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 404396159 is about 20109.6036509922. The cubic root of 404396159 is about 739.4957357080.

The spelling of 404396159 in words is "four hundred four million, three hundred ninety-six thousand, one hundred fifty-nine".