528307920 has 400 divisors, whose sum is σ = 2210989440. Its totient is φ = 114213888.

The previous prime is 528307841. The next prime is 528307937. The reversal of 528307920 is 29703825.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 861534 + ... + 862146.

Almost surely, 2^528307920 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 528307920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1105494720).

528307920 is an abundant number, since it is smaller than the sum of its proper divisors (1682681520).

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

528307920 is a wasteful number, since it uses less digits than its factorization.

528307920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 528307920 is about 22984.9498585487. The cubic root of 528307920 is about 808.4050921050.

The spelling of 528307920 in words is "five hundred twenty-eight million, three hundred seven thousand, nine hundred twenty".