528371440 has 80 divisors (see below), whose sum is σ = 1274561280. Its totient is φ = 203489280.

The previous prime is 528371413. The next prime is 528371453. The reversal of 528371440 is 44173825.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 528371396 and 528371405.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 636946 + ... + 637774.

It is an arithmetic number, because the mean of its divisors is an integer number (15932016).

Almost surely, 2^528371440 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 528371440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (637280640).

528371440 is an abundant number, since it is smaller than the sum of its proper divisors (746189840).

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

528371440 is a wasteful number, since it uses less digits than its factorization.

528371440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130 (or 1124 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 528371440 is about 22986.3315907519. The cubic root of 528371440 is about 808.4374897729.

The spelling of 528371440 in words is "five hundred twenty-eight million, three hundred seventy-one thousand, four hundred forty".