528889680 has 240 divisors, whose sum is σ = 1983998016. Its totient is φ = 125153280.

The previous prime is 528889651. The next prime is 528889693. The reversal of 528889680 is 86988825.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×528889680² = 559448587221004800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 339784 + ... + 341336.

Almost surely, 2^528889680 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 528889680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (991999008).

528889680 is an abundant number, since it is smaller than the sum of its proper divisors (1455108336).

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

528889680 is a wasteful number, since it uses less digits than its factorization.

528889680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626 (or 1617 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The square root of 528889680 is about 22997.6016140814. The cubic root of 528889680 is about 808.7017153476.

The spelling of 528889680 in words is "five hundred twenty-eight million, eight hundred eighty-nine thousand, six hundred eighty".