450136530 has 48 divisors (see below), whose sum is σ = 1174768920. Its totient is φ = 119583744.

The previous prime is 450136501. The next prime is 450136553. The reversal of 450136530 is 35631054.

450136530 is a `hidden beast` number, since 4 + 5 + 0 + 1 + 3 + 653 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 269583561 + 180552969 = 16419^2 + 13437^2 .

It is a junction number, because it is equal to n+sod(n) for n = 450136494 and 450136503.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14914 + ... + 33506.

Almost surely, 2^450136530 is an apocalyptic number.

450136530 is an abundant number, since it is smaller than the sum of its proper divisors (724632390).

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

450136530 is a wasteful number, since it uses less digits than its factorization.

450136530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18875 (or 18872 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 450136530 is about 21216.4212345061. The cubic root of 450136530 is about 766.3869239844.

Adding to 450136530 its reverse (35631054), we get a palindrome (485767584).

The spelling of 450136530 in words is "four hundred fifty million, one hundred thirty-six thousand, five hundred thirty".