528630020 has 24 divisors (see below), whose sum is σ = 1111126464. Its totient is φ = 211260896.

The previous prime is 528630017. The next prime is 528630049. The reversal of 528630020 is 20036825.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11897 + ... + 34623.

It is an arithmetic number, because the mean of its divisors is an integer number (46296936).

Almost surely, 2^528630020 is an apocalyptic number.

It is an amenable number.

528630020 is an abundant number, since it is smaller than the sum of its proper divisors (582496444).

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

528630020 is a wasteful number, since it uses less digits than its factorization.

528630020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23899 (or 23897 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 528630020 is about 22991.9555497135. The cubic root of 528630020 is about 808.5693488262.

Adding to 528630020 its reverse (20036825), we get a palindrome (548666845).

The spelling of 528630020 in words is "five hundred twenty-eight million, six hundred thirty thousand, twenty".