7318340 has 24 divisors (see below), whose sum is σ = 15435672. Its totient is φ = 2914560.

The previous prime is 7318327. The next prime is 7318349. The reversal of 7318340 is 438137.

It can be written as a sum of positive squares in 4 ways, for example, as 1098304 + 6220036 = 1048^2 + 2494^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7318349) 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 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 6200.

It is an arithmetic number, because the mean of its divisors is an integer number (643153).

Almost surely, 2^7318340 is an apocalyptic number.

It is an amenable number.

7318340 is an abundant number, since it is smaller than the sum of its proper divisors (8117332).

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

7318340 is a wasteful number, since it uses less digits than its factorization.

7318340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 7318340 is about 2705.2430574719. The cubic root of 7318340 is about 194.1500592630.

The spelling of 7318340 in words is "seven million, three hundred eighteen thousand, three hundred forty".