528561408 has 108 divisors (see below), whose sum is σ = 1461934208. Its totient is φ = 169359360.

The previous prime is 528561349. The next prime is 528561419. The reversal of 528561408 is 804165825.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3547318 + ... + 3547466.

Almost surely, 2^528561408 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 528561408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (730967104).

528561408 is an abundant number, since it is smaller than the sum of its proper divisors (933372800).

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

528561408 is an equidigital number, since it uses as much as digits as its factorization.

528561408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 528561408 is about 22990.4634142072. The cubic root of 528561408 is about 808.5343653416.

The spelling of 528561408 in words is "five hundred twenty-eight million, five hundred sixty-one thousand, four hundred eight".