450450660 has 96 divisors (see below), whose sum is σ = 1380903552. Its totient is φ = 108805120.

The previous prime is 450450643. The next prime is 450450673. The reversal of 450450660 is 66054054.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208144 + ... + 210296.

It is an arithmetic number, because the mean of its divisors is an integer number (14384412).

Almost surely, 2^450450660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450450660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690451776).

450450660 is an abundant number, since it is smaller than the sum of its proper divisors (930452892).

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

450450660 is a wasteful number, since it uses less digits than its factorization.

450450660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493 (or 2491 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 450450660 is about 21223.8229355599. The cubic root of 450450660 is about 766.5651581632.

The spelling of 450450660 in words is "four hundred fifty million, four hundred fifty thousand, six hundred sixty".