7352820 has 36 divisors (see below), whose sum is σ = 22304100. Its totient is φ = 1960704.

The previous prime is 7352819. The next prime is 7352827. The reversal of 7352820 is 282537.

It can be written as a sum of positive squares in 2 ways, for example, as 3825936 + 3526884 = 1956^2 + 1878^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7352827) 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 11 ways as a sum of consecutive naturals, for example, 20245 + ... + 20604.

Almost surely, 2^7352820 is an apocalyptic number.

It is an amenable number.

7352820 is an abundant number, since it is smaller than the sum of its proper divisors (14951280).

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

7352820 is a wasteful number, since it uses less digits than its factorization.

7352820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40864 (or 40859 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 7352820 is about 2711.6083788040. The cubic root of 7352820 is about 194.4544911513.

The spelling of 7352820 in words is "seven million, three hundred fifty-two thousand, eight hundred twenty".