530728452 has 36 divisors (see below), whose sum is σ = 1350122956. Its totient is φ = 175780800.

The previous prime is 530728447. The next prime is 530728459. The reversal of 530728452 is 254827035.

530728452 is a `hidden beast` number, since 530 + 72 + 8 + 4 + 52 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 242611776 + 288116676 = 15576^2 + 16974^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (530728459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41299 + ... + 52602.

Almost surely, 2^530728452 is an apocalyptic number.

It is an amenable number.

530728452 is an abundant number, since it is smaller than the sum of its proper divisors (819394504).

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

530728452 is a wasteful number, since it uses less digits than its factorization.

530728452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94068 (or 94063 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 530728452 is about 23037.5444003913. The cubic root of 530728452 is about 809.6378261976.

The spelling of 530728452 in words is "five hundred thirty million, seven hundred twenty-eight thousand, four hundred fifty-two".