530405730 has 96 divisors (see below), whose sum is σ = 1427166000. Its totient is φ = 136567296.

The previous prime is 530405719. The next prime is 530405747. The reversal of 530405730 is 37504035.

It is a happy number.

530405730 is a `hidden beast` number, since 53 + 0 + 40 + 573 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 224190729 + 306215001 = 14973^2 + 17499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 530405694 and 530405703.

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 47 ways as a sum of consecutive naturals, for example, 495636 + ... + 496704.

Almost surely, 2^530405730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 530405730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713583000).

530405730 is an abundant number, since it is smaller than the sum of its proper divisors (896760270).

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

530405730 is a wasteful number, since it uses less digits than its factorization.

530405730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268 (or 1265 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 530405730 is about 23030.5390731524. The cubic root of 530405730 is about 809.4736864407.

Adding to 530405730 its reverse (37504035), we get a palindrome (567909765).

It can be divided in two parts, 530405 and 730, that added together give a palindrome (531135).

The spelling of 530405730 in words is "five hundred thirty million, four hundred five thousand, seven hundred thirty".