404404057 has 2 divisors, whose sum is σ = 404404058. Its totient is φ = 404404056.

The previous prime is 404404051. The next prime is 404404079. The reversal of 404404057 is 750404404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 382163401 + 22240656 = 19549^2 + 4716^2 .

It is a cyclic number.

It is not a de Polignac number, because 404404057 - 2⁷ = 404403929 is a prime.

It is not a weakly prime, because it can be changed into another prime (404404051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202202028 + 202202029.

It is an arithmetic number, because the mean of its divisors is an integer number (202202029).

Almost surely, 2^404404057 is an apocalyptic number.

It is an amenable number.

404404057 is a deficient number, since it is larger than the sum of its proper divisors (1).

404404057 is an equidigital number, since it uses as much as digits as its factorization.

404404057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 404404057 is about 20109.8000238690. The cubic root of 404404057 is about 739.5005498811.

The spelling of 404404057 in words is "four hundred four million, four hundred four thousand, fifty-seven".