404252377 has 2 divisors, whose sum is σ = 404252378. Its totient is φ = 404252376.

The previous prime is 404252371. The next prime is 404252441. The reversal of 404252377 is 773252404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269320921 + 134931456 = 16411^2 + 11616^2 .

It is a cyclic number.

It is not a de Polignac number, because 404252377 - 2⁷ = 404252249 is a prime.

It is equal to p_21550867 and since 404252377 and 21550867 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (404252371) 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, 202126188 + 202126189.

It is an arithmetic number, because the mean of its divisors is an integer number (202126189).

Almost surely, 2^404252377 is an apocalyptic number.

It is an amenable number.

404252377 is a deficient number, since it is larger than the sum of its proper divisors (1).

404252377 is an equidigital number, since it uses as much as digits as its factorization.

404252377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 404252377 is about 20106.0283745945. The cubic root of 404252377 is about 739.4080833921.

The spelling of 404252377 in words is "four hundred four million, two hundred fifty-two thousand, three hundred seventy-seven".