528378508 has 48 divisors (see below), whose sum is σ = 1100703744. Its totient is φ = 217163520.

The previous prime is 528378491. The next prime is 528378509. The reversal of 528378508 is 805873825.

It is not an unprimeable number, because it can be changed into a prime (528378509) 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, 95391 + ... + 100777.

It is an arithmetic number, because the mean of its divisors is an integer number (22931328).

Almost surely, 2^528378508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528378508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550351872).

528378508 is an abundant number, since it is smaller than the sum of its proper divisors (572325236).

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

528378508 is a wasteful number, since it uses less digits than its factorization.

528378508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5542 (or 5540 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 46.

The square root of 528378508 is about 22986.4853337782. The cubic root of 528378508 is about 808.4410945669.

The spelling of 528378508 in words is "five hundred twenty-eight million, three hundred seventy-eight thousand, five hundred eight".