7530540 has 24 divisors (see below), whose sum is σ = 21085680. Its totient is φ = 2008128.

The previous prime is 7530539. The next prime is 7530559. The reversal of 7530540 is 450357.

It is a self number, because there is not a number n which added to its sum of digits gives 7530540.

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, 62695 + ... + 62814.

It is an arithmetic number, because the mean of its divisors is an integer number (878570).

Almost surely, 2^7530540 is an apocalyptic number.

It is an amenable number.

7530540 is an abundant number, since it is smaller than the sum of its proper divisors (13555140).

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

7530540 is a wasteful number, since it uses less digits than its factorization.

7530540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125521 (or 125519 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 7530540 is about 2744.1829385083. The cubic root of 7530540 is about 196.0087112607.

Adding to 7530540 its reverse (450357), we get a palindrome (7980897).

The spelling of 7530540 in words is "seven million, five hundred thirty thousand, five hundred forty".