450668478 has 32 divisors (see below), whose sum is σ = 972250272. Its totient is φ = 138441600.

The previous prime is 450668447. The next prime is 450668501. The reversal of 450668478 is 874866054.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 47188 + ... + 55928.

It is an arithmetic number, because the mean of its divisors is an integer number (30382821).

Almost surely, 2^450668478 is an apocalyptic number.

450668478 is an abundant number, since it is smaller than the sum of its proper divisors (521581794).

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

450668478 is a wasteful number, since it uses less digits than its factorization.

450668478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9420.

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 450668478 is about 21228.9537660244. The cubic root of 450668478 is about 766.6886972455.

The spelling of 450668478 in words is "four hundred fifty million, six hundred sixty-eight thousand, four hundred seventy-eight".