404313929 has 2 divisors, whose sum is σ = 404313930. Its totient is φ = 404313928.

The previous prime is 404313919. The next prime is 404313947. The reversal of 404313929 is 929313404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400000000 + 4313929 = 20000^2 + 2077^2 .

It is a cyclic number.

It is not a de Polignac number, because 404313929 - 2¹² = 404309833 is a prime.

It is not a weakly prime, because it can be changed into another prime (404313919) by changing a digit.

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 as a sum of consecutive naturals, namely, 202156964 + 202156965.

It is an arithmetic number, because the mean of its divisors is an integer number (202156965).

Almost surely, 2^404313929 is an apocalyptic number.

It is an amenable number.

404313929 is a deficient number, since it is larger than the sum of its proper divisors (1).

404313929 is an equidigital number, since it uses as much as digits as its factorization.

404313929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 404313929 is about 20107.5590015297. The cubic root of 404313929 is about 739.4456092375.

The spelling of 404313929 in words is "four hundred four million, three hundred thirteen thousand, nine hundred twenty-nine".