450322650 has 72 divisors (see below), whose sum is σ = 1213250844. Its totient is φ = 119750400.

The previous prime is 450322637. The next prime is 450322657. The reversal of 450322650 is 56223054.

450322650 is a `hidden beast` number, since 4 + 5 + 0 + 3 + 2 + 2 + 650 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 23941449 + 426381201 = 4893^2 + 20649^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (450322657) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 188262 + ... + 190638.

Almost surely, 2^450322650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450322650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (606625422).

450322650 is an abundant number, since it is smaller than the sum of its proper divisors (762928194).

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

450322650 is a wasteful number, since it uses less digits than its factorization.

450322650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2816 (or 2808 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 450322650 is about 21220.8070063323. The cubic root of 450322650 is about 766.4925365930.

The spelling of 450322650 in words is "four hundred fifty million, three hundred twenty-two thousand, six hundred fifty".