7532540 has 12 divisors (see below), whose sum is σ = 15818376. Its totient is φ = 3013008.

The previous prime is 7532537. The next prime is 7532573. The reversal of 7532540 is 452357.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188294 + ... + 188333.

It is an arithmetic number, because the mean of its divisors is an integer number (1318198).

Almost surely, 2^7532540 is an apocalyptic number.

It is an amenable number.

7532540 is an abundant number, since it is smaller than the sum of its proper divisors (8285836).

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

7532540 is a wasteful number, since it uses less digits than its factorization.

7532540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376636 (or 376634 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 7532540 is about 2744.5473215086. The cubic root of 7532540 is about 196.0260620626.

Adding to 7532540 its reverse (452357), we get a palindrome (7984897).

The spelling of 7532540 in words is "seven million, five hundred thirty-two thousand, five hundred forty".