450725220 has 144 divisors (see below), whose sum is σ = 1570121280. Its totient is φ = 103507200.

The previous prime is 450725207. The next prime is 450725237. The reversal of 450725220 is 22527054.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31630 + ... + 43610.

It is an arithmetic number, because the mean of its divisors is an integer number (10903620).

Almost surely, 2^450725220 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 450725220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (785060640).

450725220 is an abundant number, since it is smaller than the sum of its proper divisors (1119396060).

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

450725220 is a wasteful number, since it uses less digits than its factorization.

450725220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12026 (or 12021 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 450725220 is about 21230.2901534576. The cubic root of 450725220 is about 766.7208728739.

The spelling of 450725220 in words is "four hundred fifty million, seven hundred twenty-five thousand, two hundred twenty".