9004540 has 12 divisors (see below), whose sum is σ = 18909576. Its totient is φ = 3601808.

The previous prime is 9004531. The next prime is 9004561. The reversal of 9004540 is 454009.

It is a super-2 number, since 2×9004540² = 162163481223200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225094 + ... + 225133.

It is an arithmetic number, because the mean of its divisors is an integer number (1575798).

Almost surely, 2^9004540 is an apocalyptic number.

It is an amenable number.

9004540 is an abundant number, since it is smaller than the sum of its proper divisors (9905036).

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

9004540 is a wasteful number, since it uses less digits than its factorization.

9004540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450236 (or 450234 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 9004540 is about 3000.7565712667. The cubic root of 9004540 is about 208.0433526499.

Adding to 9004540 its reverse (454009), we get a palindrome (9458549).

The spelling of 9004540 in words is "nine million, four thousand, five hundred forty".