7312266 has 24 divisors (see below), whose sum is σ = 17062500. Its totient is φ = 2249856.

The previous prime is 7312243. The next prime is 7312267. The reversal of 7312266 is 6622137.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7209225 + 103041 = 2685^2 + 321^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7312267) 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 11 ways as a sum of consecutive naturals, for example, 15391 + ... + 15858.

Almost surely, 2^7312266 is an apocalyptic number.

7312266 is an abundant number, since it is smaller than the sum of its proper divisors (9750234).

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

7312266 is a wasteful number, since it uses less digits than its factorization.

7312266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31270 (or 31267 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 7312266 is about 2704.1201896365. The cubic root of 7312266 is about 194.0963315114.

The spelling of 7312266 in words is "seven million, three hundred twelve thousand, two hundred sixty-six".