450020353 has 4 divisors (see below), whose sum is σ = 454002948. Its totient is φ = 446037760.

The previous prime is 450020321. The next prime is 450020357. The reversal of 450020353 is 353020054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 206410689 + 243609664 = 14367^2 + 15608^2 .

It is a cyclic number.

It is not a de Polignac number, because 450020353 - 2⁵ = 450020321 is a prime.

It is a super-2 number, since 2×450020353² = 405036636228489218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450020357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991128 + ... + 1991353.

It is an arithmetic number, because the mean of its divisors is an integer number (113500737).

Almost surely, 2^450020353 is an apocalyptic number.

It is an amenable number.

450020353 is a deficient number, since it is larger than the sum of its proper divisors (3982595).

450020353 is a wasteful number, since it uses less digits than its factorization.

450020353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982594.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 450020353 is about 21213.6831549828. The cubic root of 450020353 is about 766.3209853274.

The spelling of 450020353 in words is "four hundred fifty million, twenty thousand, three hundred fifty-three".