454238849 has 2 divisors, whose sum is σ = 454238850. Its totient is φ = 454238848.

The previous prime is 454238819. The next prime is 454238893. The reversal of 454238849 is 948832454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450797824 + 3441025 = 21232^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 454238849 - 2²⁰ = 453190273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (454238809) 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, 227119424 + 227119425.

It is an arithmetic number, because the mean of its divisors is an integer number (227119425).

Almost surely, 2^454238849 is an apocalyptic number.

It is an amenable number.

454238849 is a deficient number, since it is larger than the sum of its proper divisors (1).

454238849 is an equidigital number, since it uses as much as digits as its factorization.

454238849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 47.

The square root of 454238849 is about 21312.8798851774. The cubic root of 454238849 is about 768.7080426216.

The spelling of 454238849 in words is "four hundred fifty-four million, two hundred thirty-eight thousand, eight hundred forty-nine".