528485820 has 24 divisors (see below), whose sum is σ = 1479760464. Its totient is φ = 140929536.

The previous prime is 528485819. The next prime is 528485863. The reversal of 528485820 is 28584825.

It is a congruent number.

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, 4403989 + ... + 4404108.

It is an arithmetic number, because the mean of its divisors is an integer number (61656686).

Almost surely, 2^528485820 is an apocalyptic number.

It is an amenable number.

528485820 is an abundant number, since it is smaller than the sum of its proper divisors (951274644).

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

528485820 is a wasteful number, since it uses less digits than its factorization.

528485820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8808109 (or 8808107 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 42.

The square root of 528485820 is about 22988.8194564227. The cubic root of 528485820 is about 808.4958214700.

The spelling of 528485820 in words is "five hundred twenty-eight million, four hundred eighty-five thousand, eight hundred twenty".