7532240 has 20 divisors (see below), whose sum is σ = 17512644. Its totient is φ = 3012864.

The previous prime is 7532221. The next prime is 7532249. The reversal of 7532240 is 422357.

7532240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2849344 + 4682896 = 1688^2 + 2164^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7532249) by changing a digit.

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, 46997 + ... + 47156.

Almost surely, 2^7532240 is an apocalyptic number.

It is an amenable number.

7532240 is an abundant number, since it is smaller than the sum of its proper divisors (9980404).

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

7532240 is a wasteful number, since it uses less digits than its factorization.

7532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94166 (or 94160 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 7532240 is about 2744.4926671427. The cubic root of 7532240 is about 196.0234596382.

Adding to 7532240 its reverse (422357), we get a palindrome (7954597).

The spelling of 7532240 in words is "seven million, five hundred thirty-two thousand, two hundred forty".