449345453 has 2 divisors, whose sum is σ = 449345454. Its totient is φ = 449345452.

The previous prime is 449345447. The next prime is 449345467. The reversal of 449345453 is 354543944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 438567364 + 10778089 = 20942^2 + 3283^2 .

It is a cyclic number.

It is not a de Polignac number, because 449345453 - 2⁴ = 449345437 is a prime.

It is a super-2 number, since 2×449345453² = 403822672263550418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 449345453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449345473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224672726 + 224672727.

It is an arithmetic number, because the mean of its divisors is an integer number (224672727).

Almost surely, 2^449345453 is an apocalyptic number.

It is an amenable number.

449345453 is a deficient number, since it is larger than the sum of its proper divisors (1).

449345453 is an equidigital number, since it uses as much as digits as its factorization.

449345453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 41.

The square root of 449345453 is about 21197.7700006392. The cubic root of 449345453 is about 765.9377072600.

The spelling of 449345453 in words is "four hundred forty-nine million, three hundred forty-five thousand, four hundred fifty-three".