404458349 has 2 divisors, whose sum is σ = 404458350. Its totient is φ = 404458348.

The previous prime is 404458337. The next prime is 404458357. The reversal of 404458349 is 943854404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304258249 + 100200100 = 17443^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 404458349 - 2²⁸ = 136022893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404457349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202229174 + 202229175.

It is an arithmetic number, because the mean of its divisors is an integer number (202229175).

Almost surely, 2^404458349 is an apocalyptic number.

It is an amenable number.

404458349 is a deficient number, since it is larger than the sum of its proper divisors (1).

404458349 is an equidigital number, since it uses as much as digits as its factorization.

404458349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 404458349 is about 20111.1498676729. The cubic root of 404458349 is about 739.5336415103.

The spelling of 404458349 in words is "four hundred four million, four hundred fifty-eight thousand, three hundred forty-nine".