530493640 has 32 divisors (see below), whose sum is σ = 1201635000. Its totient is φ = 210770944.

The previous prime is 530493631. The next prime is 530493641. The reversal of 530493640 is 46394035.

It is a happy number.

530493640 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 340550116 + 189943524 = 18454^2 + 13782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 530493596 and 530493605.

It is not an unprimeable number, because it can be changed into a prime (530493641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38545 + ... + 50464.

Almost surely, 2^530493640 is an apocalyptic number.

It is an amenable number.

530493640 is an abundant number, since it is smaller than the sum of its proper divisors (671141360).

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

530493640 is a wasteful number, since it uses less digits than its factorization.

530493640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89169 (or 89165 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 530493640 is about 23032.4475468848. The cubic root of 530493640 is about 809.5184049752.

The spelling of 530493640 in words is "five hundred thirty million, four hundred ninety-three thousand, six hundred forty".