450978299 has 2 divisors, whose sum is σ = 450978300. Its totient is φ = 450978298.

The previous prime is 450978293. The next prime is 450978331. The reversal of 450978299 is 992879054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 450978299 - 2¹² = 450974203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450978299.

It is not a weakly prime, because it can be changed into another prime (450978293) 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, 225489149 + 225489150.

It is an arithmetic number, because the mean of its divisors is an integer number (225489150).

Almost surely, 2^450978299 is an apocalyptic number.

450978299 is a deficient number, since it is larger than the sum of its proper divisors (1).

450978299 is an equidigital number, since it uses as much as digits as its factorization.

450978299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The square root of 450978299 is about 21236.2496453588. The cubic root of 450978299 is about 766.8643487930.

The spelling of 450978299 in words is "four hundred fifty million, nine hundred seventy-eight thousand, two hundred ninety-nine".