7318090 has 32 divisors (see below), whose sum is σ = 14542416. Its totient is φ = 2634240.

The previous prime is 7318067. The next prime is 7318093. The reversal of 7318090 is 908137.

It can be written as a sum of positive squares in 8 ways, for example, as 2169729 + 5148361 = 1473^2 + 2269^2 .

It is not an unprimeable number, because it can be changed into a prime (7318093) 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 15 ways as a sum of consecutive naturals, for example, 4644 + ... + 6016.

Almost surely, 2^7318090 is an apocalyptic number.

7318090 is a deficient number, since it is larger than the sum of its proper divisors (7224326).

7318090 is a wasteful number, since it uses less digits than its factorization.

7318090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 7318090 is about 2705.1968505083. The cubic root of 7318090 is about 194.1478484672.

The spelling of 7318090 in words is "seven million, three hundred eighteen thousand, ninety".