528630 has 32 divisors (see below), whose sum is σ = 1292544. Its totient is φ = 138336.

The previous prime is 528629. The next prime is 528631. The reversal of 528630 is 36825.

It is an interprime number because it is at equal distance from previous prime (528629) and next prime (528631).

It is a self number, because there is not a number n which added to its sum of digits gives 528630.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 528630.

It is not an unprimeable number, because it can be changed into a prime (528631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1879 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (40392).

2⁵²⁸⁶³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646272).

528630 is an abundant number, since it is smaller than the sum of its proper divisors (763914).

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

528630 is a wasteful number, since it uses less digits than its factorization.

528630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 528630 is about 727.0694602306. The cubic root of 528630 is about 80.8569338629.

The spelling of 528630 in words is "five hundred twenty-eight thousand, six hundred thirty".