530243240 has 32 divisors (see below), whose sum is σ = 1194880680. Its totient is φ = 211771392.

The previous prime is 530243227. The next prime is 530243267. The reversal of 530243240 is 42342035.

It can be written as a sum of positive squares in 4 ways, for example, as 280160644 + 250082596 = 16738^2 + 15814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17072 + ... + 36768.

Almost surely, 2^530243240 is an apocalyptic number.

It is an amenable number.

530243240 is an abundant number, since it is smaller than the sum of its proper divisors (664637440).

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

530243240 is a wasteful number, since it uses less digits than its factorization.

530243240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20381 (or 20377 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 530243240 is about 23027.0110956676. The cubic root of 530243240 is about 809.3910171395.

Adding to 530243240 its reverse (42342035), we get a palindrome (572585275).

The spelling of 530243240 in words is "five hundred thirty million, two hundred forty-three thousand, two hundred forty".