4528685840 has 240 divisors, whose sum is σ = 12824179200. Its totient is φ = 1481195520.

The previous prime is 4528685839. The next prime is 4528685857. The reversal of 4528685840 is 485868254.

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, 10085936 + ... + 10086384.

It is an arithmetic number, because the mean of its divisors is an integer number (53434080).

Almost surely, 2^4528685840 is an apocalyptic number.

4528685840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4528685840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6412089600).

4528685840 is an abundant number, since it is smaller than the sum of its proper divisors (8295493360).

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

4528685840 is a wasteful number, since it uses less digits than its factorization.

4528685840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 577 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 50.

The square root of 4528685840 is about 67295.5112916159. The cubic root of 4528685840 is about 1654.4642911594.

The spelling of 4528685840 in words is "four billion, five hundred twenty-eight million, six hundred eighty-five thousand, eight hundred forty".