528711138 has 96 divisors (see below), whose sum is σ = 1291530240. Its totient is φ = 161488080.

The previous prime is 528711121. The next prime is 528711163. The reversal of 528711138 is 831117825.

It is a Curzon 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, 285331 + ... + 287177.

It is an arithmetic number, because the mean of its divisors is an integer number (13453440).

Almost surely, 2^528711138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 528711138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645765120).

528711138 is an abundant number, since it is smaller than the sum of its proper divisors (762819102).

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

528711138 is a wasteful number, since it uses less digits than its factorization.

528711138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 1902 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 528711138 is about 22993.7195338205. The cubic root of 528711138 is about 808.6107048921.

The spelling of 528711138 in words is "five hundred twenty-eight million, seven hundred eleven thousand, one hundred thirty-eight".