450380257 has 2 divisors, whose sum is σ = 450380258. Its totient is φ = 450380256.

The previous prime is 450380251. The next prime is 450380279. The reversal of 450380257 is 752083054.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422754721 + 27625536 = 20561^2 + 5256^2 .

It is a cyclic number.

It is not a de Polignac number, because 450380257 - 2¹⁹ = 449855969 is a prime.

It is not a weakly prime, because it can be changed into another prime (450380251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225190128 + 225190129.

It is an arithmetic number, because the mean of its divisors is an integer number (225190129).

Almost surely, 2^450380257 is an apocalyptic number.

It is an amenable number.

450380257 is a deficient number, since it is larger than the sum of its proper divisors (1).

450380257 is an equidigital number, since it uses as much as digits as its factorization.

450380257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 450380257 is about 21222.1642864247. The cubic root of 450380257 is about 766.5252194207.

The spelling of 450380257 in words is "four hundred fifty million, three hundred eighty thousand, two hundred fifty-seven".