528650240 has 104 divisors (see below), whose sum is σ = 1288018368. Its totient is φ = 208240640.

The previous prime is 528650233. The next prime is 528650263. The reversal of 528650240 is 42056825.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 528650197 and 528650206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699685 + ... + 1699995.

It is an arithmetic number, because the mean of its divisors is an integer number (12384792).

Almost surely, 2^528650240 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 528650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (644009184).

528650240 is an abundant number, since it is smaller than the sum of its proper divisors (759368128).

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

528650240 is an equidigital number, since it uses as much as digits as its factorization.

528650240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 528650240 is about 22992.3952645217. The cubic root of 528650240 is about 808.5796579039.

The spelling of 528650240 in words is "five hundred twenty-eight million, six hundred fifty thousand, two hundred forty".