9000520 has 32 divisors (see below), whose sum is σ = 20502720. Its totient is φ = 3555520.

The previous prime is 9000517. The next prime is 9000569. The reversal of 9000520 is 250009.

It is a junction number, because it is equal to n+sod(n) for n = 9000494 and 9000503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1965 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (640710).

Almost surely, 2^9000520 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 9000520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10251360).

9000520 is an abundant number, since it is smaller than the sum of its proper divisors (11502200).

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

9000520 is a wasteful number, since it uses less digits than its factorization.

9000520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2805 (or 2801 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 9000520 is about 3000.0866654149. The cubic root of 9000520 is about 208.0123883154.

Adding to 9000520 its reverse (250009), we get a palindrome (9250529).

The spelling of 9000520 in words is "nine million, five hundred twenty", and thus it is an aban number.