2339309 has 6 divisors (see below), whose sum is σ = 2721294. Its totient is φ = 2005080.

The previous prime is 2339303. The next prime is 2339317. The reversal of 2339309 is 9039332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1177225 + 1162084 = 1085^2 + 1078^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2339309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2339303) 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 5 ways as a sum of consecutive naturals, for example, 23822 + ... + 23919.

It is an arithmetic number, because the mean of its divisors is an integer number (453549).

2^2339309 is an apocalyptic number.

It is an amenable number.

2339309 is a deficient number, since it is larger than the sum of its proper divisors (381985).

2339309 is an equidigital number, since it uses as much as digits as its factorization.

2339309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47755 (or 47748 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 2339309 is about 1529.4799769856. The cubic root of 2339309 is about 132.7483700264.

The spelling of 2339309 in words is "two million, three hundred thirty-nine thousand, three hundred nine".