9004520 has 32 divisors (see below), whose sum is σ = 23155200. Its totient is φ = 3087168.

The previous prime is 9004519. The next prime is 9004531. The reversal of 9004520 is 254009.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 9004492 and 9004501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15800 + ... + 16359.

It is an arithmetic number, because the mean of its divisors is an integer number (723600).

Almost surely, 2^9004520 is an apocalyptic number.

It is an amenable number.

9004520 is an abundant number, since it is smaller than the sum of its proper divisors (14150680).

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

9004520 is a wasteful number, since it uses less digits than its factorization.

9004520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32177 (or 32173 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 9004520 is about 3000.7532387719. The cubic root of 9004520 is about 208.0431986213.

Adding to 9004520 its reverse (254009), we get a palindrome (9258529).

The spelling of 9004520 in words is "nine million, four thousand, five hundred twenty".