2309306 has 4 divisors (see below), whose sum is σ = 3463962. Its totient is φ = 1154652.

The previous prime is 2309303. The next prime is 2309323. The reversal of 2309306 is 6039032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 180625 = 1459^2 + 425^2 .

It is not an unprimeable number, because it can be changed into a prime (2309303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577325 + ... + 577328.

2^2309306 is an apocalyptic number.

2309306 is a deficient number, since it is larger than the sum of its proper divisors (1154656).

2309306 is a wasteful number, since it uses less digits than its factorization.

2309306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154655.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 2309306 is about 1519.6400889684. The cubic root of 2309306 is about 132.1784012631.

The spelling of 2309306 in words is "two million, three hundred nine thousand, three hundred six".