7530820 has 24 divisors (see below), whose sum is σ = 17252928. Its totient is φ = 2738400.

The previous prime is 7530791. The next prime is 7530827. The reversal of 7530820 is 280357.

It is not an unprimeable number, because it can be changed into a prime (7530827) by changing a digit.

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, 16896 + ... + 17335.

It is an arithmetic number, because the mean of its divisors is an integer number (718872).

Almost surely, 2^7530820 is an apocalyptic number.

It is an amenable number.

7530820 is an abundant number, since it is smaller than the sum of its proper divisors (9722108).

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

7530820 is a wasteful number, since it uses less digits than its factorization.

7530820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34251 (or 34249 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 7530820 is about 2744.2339550410. The cubic root of 7530820 is about 196.0111405579.

Subtracting from 7530820 its product of nonzero digits (1680), we obtain a triangular number (7529140 = T₃₈₈₀).

The spelling of 7530820 in words is "seven million, five hundred thirty thousand, eight hundred twenty".