450500645 has 32 divisors (see below), whose sum is σ = 646444800. Its totient is φ = 294852096.

The previous prime is 450500627. The next prime is 450500651. The reversal of 450500645 is 546005054.

It is not a de Polignac number, because 450500645 - 2²⁴ = 433723429 is a prime.

It is a super-2 number, since 2×450500645² = 405901662290832050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87842 + ... + 92828.

It is an arithmetic number, because the mean of its divisors is an integer number (20201400).

Almost surely, 2^450500645 is an apocalyptic number.

It is an amenable number.

450500645 is a deficient number, since it is larger than the sum of its proper divisors (195944155).

450500645 is a wasteful number, since it uses less digits than its factorization.

450500645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 450500645 is about 21225.0004711425. Note that the first 3 decimals coincide. The cubic root of 450500645 is about 766.5935115033.

Adding to 450500645 its reverse (546005054), we get a palindrome (996505699).

The spelling of 450500645 in words is "four hundred fifty million, five hundred thousand, six hundred forty-five".