404180057 has 2 divisors, whose sum is σ = 404180058. Its totient is φ = 404180056.

The previous prime is 404179999. The next prime is 404180069. The reversal of 404180057 is 750081404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366492736 + 37687321 = 19144^2 + 6139^2 .

It is a cyclic number.

It is not a de Polignac number, because 404180057 - 2¹⁴ = 404163673 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (404180087) 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, 202090028 + 202090029.

It is an arithmetic number, because the mean of its divisors is an integer number (202090029).

Almost surely, 2^404180057 is an apocalyptic number.

It is an amenable number.

404180057 is a deficient number, since it is larger than the sum of its proper divisors (1).

404180057 is an equidigital number, since it uses as much as digits as its factorization.

404180057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 404180057 is about 20104.2298285709. The cubic root of 404180057 is about 739.3639878511.

The spelling of 404180057 in words is "four hundred four million, one hundred eighty thousand, fifty-seven".