528403840 has 64 divisors (see below), whose sum is σ = 1318174560. Its totient is φ = 202166272.

The previous prime is 528403807. The next prime is 528403847. The reversal of 528403840 is 48304825.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 528403796 and 528403805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528403847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3229 + ... + 32668.

Almost surely, 2^528403840 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 528403840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659087280).

528403840 is an abundant number, since it is smaller than the sum of its proper divisors (789770720).

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

528403840 is a wasteful number, since it uses less digits than its factorization.

528403840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35939 (or 35927 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 528403840 is about 22987.0363466020. The cubic root of 528403840 is about 808.4540140317.

The spelling of 528403840 in words is "five hundred twenty-eight million, four hundred three thousand, eight hundred forty".