454409 has 2 divisors, whose sum is σ = 454410. Its totient is φ = 454408.

The previous prime is 454387. The next prime is 454417. The reversal of 454409 is 904454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394384 + 60025 = 628^2 + 245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (454009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227204 + 227205.

It is an arithmetic number, because the mean of its divisors is an integer number (227205).

2⁴⁵⁴⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

454409 is a deficient number, since it is larger than the sum of its proper divisors (1).

454409 is an equidigital number, since it uses as much as digits as its factorization.

454409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 454409 is about 674.0986574679. The cubic root of 454409 is about 76.8804012774.

The spelling of 454409 in words is "four hundred fifty-four thousand, four hundred nine".