450471945 has 48 divisors (see below), whose sum is σ = 914666688. Its totient is φ = 187205760.

The previous prime is 450471941. The next prime is 450471947. The reversal of 450471945 is 549174054.

It is not a de Polignac number, because 450471945 - 2² = 450471941 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (450471941) 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 in 47 ways as a sum of consecutive naturals, for example, 19774 + ... + 35943.

It is an arithmetic number, because the mean of its divisors is an integer number (19055556).

Almost surely, 2^450471945 is an apocalyptic number.

It is an amenable number.

450471945 is an abundant number, since it is smaller than the sum of its proper divisors (464194743).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450471945 is a wasteful number, since it uses less digits than its factorization.

450471945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55750 (or 55743 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 450471945 is about 21224.3243708722. The cubic root of 450471945 is about 766.5772320586.

The spelling of 450471945 in words is "four hundred fifty million, four hundred seventy-one thousand, nine hundred forty-five".