530737728 has 56 divisors (see below), whose sum is σ = 1410492480. Its totient is φ = 176125440.

The previous prime is 530737717. The next prime is 530737751. The reversal of 530737728 is 827737035.

It is a self number, because there is not a number n which added to its sum of digits gives 530737728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37933 + ... + 50003.

Almost surely, 2^530737728 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 530737728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705246240).

530737728 is an abundant number, since it is smaller than the sum of its proper divisors (879754752).

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

530737728 is a wasteful number, since it uses less digits than its factorization.

530737728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12315 (or 12305 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 42.

The square root of 530737728 is about 23037.7457230520. The cubic root of 530737728 is about 809.6425430835.

The spelling of 530737728 in words is "five hundred thirty million, seven hundred thirty-seven thousand, seven hundred twenty-eight".