528378624 has 108 divisors (see below), whose sum is σ = 1552548816. Its totient is φ = 172763136.

The previous prime is 528378607. The next prime is 528378647. The reversal of 528378624 is 426873825.

It is a self number, because there is not a number n which added to its sum of digits gives 528378624.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119949 + ... + 124275.

It is an arithmetic number, because the mean of its divisors is an integer number (14375452).

Almost surely, 2^528378624 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 528378624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776274408).

528378624 is an abundant number, since it is smaller than the sum of its proper divisors (1024170192).

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

528378624 is a wasteful number, since it uses less digits than its factorization.

528378624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402 (or 4385 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 528378624 is about 22986.4878569998. The cubic root of 528378624 is about 808.4411537285.

The spelling of 528378624 in words is "five hundred twenty-eight million, three hundred seventy-eight thousand, six hundred twenty-four".