450438530 has 32 divisors (see below), whose sum is σ = 818422704. Its totient is φ = 178488576.

The previous prime is 450438493. The next prime is 450438539. The reversal of 450438530 is 35834054.

It can be written as a sum of positive squares in 8 ways, for example, as 184063489 + 266375041 = 13567^2 + 16321^2 .

It is not an unprimeable number, because it can be changed into a prime (450438539) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 734504 + ... + 735116.

Almost surely, 2^450438530 is an apocalyptic number.

450438530 is a deficient number, since it is larger than the sum of its proper divisors (367984174).

450438530 is a wasteful number, since it uses less digits than its factorization.

450438530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 450438530 is about 21223.5371698499. The cubic root of 450438530 is about 766.5582772625.

It can be divided in two parts, 4504 and 38530, that added together give a palindrome (43034).

The spelling of 450438530 in words is "four hundred fifty million, four hundred thirty-eight thousand, five hundred thirty".