404252371 has 2 divisors, whose sum is σ = 404252372. Its totient is φ = 404252370.

The previous prime is 404252363. The next prime is 404252377. The reversal of 404252371 is 173252404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404252371 - 2³ = 404252363 is a prime.

It is not a weakly prime, because it can be changed into another prime (404252377) 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, 202126185 + 202126186.

It is an arithmetic number, because the mean of its divisors is an integer number (202126186).

Almost surely, 2^404252371 is an apocalyptic number.

404252371 is a deficient number, since it is larger than the sum of its proper divisors (1).

404252371 is an equidigital number, since it uses as much as digits as its factorization.

404252371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 404252371 is about 20106.0282253855. The cubic root of 404252371 is about 739.4080797339.

The spelling of 404252371 in words is "four hundred four million, two hundred fifty-two thousand, three hundred seventy-one".