450799209 has 16 divisors (see below), whose sum is σ = 763258240. Its totient is φ = 257599440.

The previous prime is 450799207. The next prime is 450799243. The reversal of 450799209 is 902997054.

It is not a de Polignac number, because 450799209 - 2¹ = 450799207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450799207) 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 in 15 ways as a sum of consecutive naturals, for example, 1192402 + ... + 1192779.

It is an arithmetic number, because the mean of its divisors is an integer number (47703640).

Almost surely, 2^450799209 is an apocalyptic number.

It is an amenable number.

450799209 is a deficient number, since it is larger than the sum of its proper divisors (312459031).

450799209 is a wasteful number, since it uses less digits than its factorization.

450799209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385197 (or 2385191 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 450799209 is about 21232.0326158378. The cubic root of 450799209 is about 766.7628243810.

The spelling of 450799209 in words is "four hundred fifty million, seven hundred ninety-nine thousand, two hundred nine".