530400240493 has 2 divisors, whose sum is σ = 530400240494. Its totient is φ = 530400240492.

The previous prime is 530400240457. The next prime is 530400240563. The reversal of 530400240493 is 394042004035.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 523731558249 + 6668682244 = 723693^2 + 81662^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530400240493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (530400240443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265200120246 + 265200120247.

It is an arithmetic number, because the mean of its divisors is an integer number (265200120247).

Almost surely, 2^530400240493 is an apocalyptic number.

It is an amenable number.

530400240493 is a deficient number, since it is larger than the sum of its proper divisors (1).

530400240493 is an equidigital number, since it uses as much as digits as its factorization.

530400240493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 530400240493 in words is "five hundred thirty billion, four hundred million, two hundred forty thousand, four hundred ninety-three".