528323820 has 24 divisors (see below), whose sum is σ = 1479306864. Its totient is φ = 140886336.

The previous prime is 528323813. The next prime is 528323821. The reversal of 528323820 is 28323825.

It is not an unprimeable number, because it can be changed into a prime (528323821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4402639 + ... + 4402758.

It is an arithmetic number, because the mean of its divisors is an integer number (61637786).

Almost surely, 2^528323820 is an apocalyptic number.

It is an amenable number.

528323820 is an abundant number, since it is smaller than the sum of its proper divisors (950983044).

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

528323820 is a wasteful number, since it uses less digits than its factorization.

528323820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8805409 (or 8805407 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 528323820 is about 22985.2957344473. The cubic root of 528323820 is about 808.4132019664.

The spelling of 528323820 in words is "five hundred twenty-eight million, three hundred twenty-three thousand, eight hundred twenty".