530015640 has 256 divisors, whose sum is σ = 2087424000. Its totient is φ = 104302080.

The previous prime is 530015623. The next prime is 530015671. The reversal of 530015640 is 46510035.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 530015640.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 174051 + ... + 177069.

It is an arithmetic number, because the mean of its divisors is an integer number (8154000).

Almost surely, 2^530015640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530015640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1043712000).

530015640 is an abundant number, since it is smaller than the sum of its proper divisors (1557408360).

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

530015640 is a wasteful number, since it uses less digits than its factorization.

530015640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070 (or 3066 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 530015640 is about 23022.0685430306. The cubic root of 530015640 is about 809.2751937177.

Adding to 530015640 its reverse (46510035), we get a palindrome (576525675).

The spelling of 530015640 in words is "five hundred thirty million, fifteen thousand, six hundred forty".