450999999 has 12 divisors (see below), whose sum is σ = 651651000. Its totient is φ = 300571344.

The previous prime is 450999977. The next prime is 451000009. The reversal of 450999999 is 999999054.

450999999 is a `hidden beast` number, since 450 + 9 + 9 + 99 + 99 = 666.

It is not a de Polignac number, because 450999999 - 2⁸ = 450999743 is a prime.

450999999 is a modest number, since divided by 99999 gives 4509 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450999799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33277 + ... + 44825.

It is an arithmetic number, because the mean of its divisors is an integer number (54304250).

Almost surely, 2^450999999 is an apocalyptic number.

450999999 is a deficient number, since it is larger than the sum of its proper divisors (200651001).

450999999 is a wasteful number, since it uses less digits than its factorization.

450999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15894 (or 15891 counting only the distinct ones).

The product of its (nonzero) digits is 10628820, while the sum is 63.

The square root of 450999999 is about 21236.7605580512. The cubic root of 450999999 is about 766.8766484901.

The spelling of 450999999 in words is "four hundred fifty million, nine hundred ninety-nine thousand, nine hundred ninety-nine".