450505906 has 16 divisors (see below), whose sum is σ = 685024704. Its totient is φ = 222173424.

The previous prime is 450505901. The next prime is 450505907. The reversal of 450505906 is 609505054.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (450505901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118816 + ... + 122548.

It is an arithmetic number, because the mean of its divisors is an integer number (42814044).

Almost surely, 2^450505906 is an apocalyptic number.

450505906 is a deficient number, since it is larger than the sum of its proper divisors (234518798).

450505906 is a wasteful number, since it uses less digits than its factorization.

450505906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 450505906 is about 21225.1244048180. The cubic root of 450505906 is about 766.5964956150.

The spelling of 450505906 in words is "four hundred fifty million, five hundred five thousand, nine hundred six".