530640244 has 24 divisors (see below), whose sum is σ = 985928328. Its totient is φ = 249031680.

The previous prime is 530640239. The next prime is 530640247. The reversal of 530640244 is 442046035.

It can be written as a sum of positive squares in 4 ways, for example, as 207072100 + 323568144 = 14390^2 + 17988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530640247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14904 + ... + 35824.

It is an arithmetic number, because the mean of its divisors is an integer number (41080347).

Almost surely, 2^530640244 is an apocalyptic number.

It is an amenable number.

530640244 is a deficient number, since it is larger than the sum of its proper divisors (455288084).

530640244 is a wasteful number, since it uses less digits than its factorization.

530640244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21315 (or 21313 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 530640244 is about 23035.6298806870. The cubic root of 530640244 is about 809.5929693033.

Adding to 530640244 its reverse (442046035), we get a palindrome (972686279).

The spelling of 530640244 in words is "five hundred thirty million, six hundred forty thousand, two hundred forty-four".