7326820 has 12 divisors (see below), whose sum is σ = 15386364. Its totient is φ = 2930720.

The previous prime is 7326749. The next prime is 7326827. The reversal of 7326820 is 286237.

It can be written as a sum of positive squares in 2 ways, for example, as 1382976 + 5943844 = 1176^2 + 2438^2 .

It is not an unprimeable number, because it can be changed into a prime (7326827) 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, 183151 + ... + 183190.

It is an arithmetic number, because the mean of its divisors is an integer number (1282197).

Almost surely, 2^7326820 is an apocalyptic number.

It is an amenable number.

7326820 is an abundant number, since it is smaller than the sum of its proper divisors (8059544).

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

7326820 is a wasteful number, since it uses less digits than its factorization.

7326820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366350 (or 366348 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7326820 is about 2706.8099305271. The cubic root of 7326820 is about 194.2250196594.

The spelling of 7326820 in words is "seven million, three hundred twenty-six thousand, eight hundred twenty".