450186449 has 2 divisors, whose sum is σ = 450186450. Its totient is φ = 450186448.

The previous prime is 450186421. The next prime is 450186481. The reversal of 450186449 is 944681054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 450076225 + 110224 = 21215^2 + 332^2 .

It is a cyclic number.

It is not a de Polignac number, because 450186449 - 2⁸ = 450186193 is a prime.

It is not a weakly prime, because it can be changed into another prime (450186419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225093224 + 225093225.

It is an arithmetic number, because the mean of its divisors is an integer number (225093225).

Almost surely, 2^450186449 is an apocalyptic number.

It is an amenable number.

450186449 is a deficient number, since it is larger than the sum of its proper divisors (1).

450186449 is an equidigital number, since it uses as much as digits as its factorization.

450186449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 450186449 is about 21217.5976255560. The cubic root of 450186449 is about 766.4152530595.

The spelling of 450186449 in words is "four hundred fifty million, one hundred eighty-six thousand, four hundred forty-nine".