2342309 has 2 divisors, whose sum is σ = 2342310. Its totient is φ = 2342308.

The previous prime is 2342293. The next prime is 2342357. The reversal of 2342309 is 9032432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2265025 + 77284 = 1505^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 2342309 - 2⁴ = 2342293 is a prime.

It is a super-2 number, since 2×2342309² = 10972822902962, which contains 22 as substring.

It is equal to p₁₇₂₃₇₃ and since 2342309 and 172373 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2342399) 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 as a sum of consecutive naturals, namely, 1171154 + 1171155.

It is an arithmetic number, because the mean of its divisors is an integer number (1171155).

2^2342309 is an apocalyptic number.

It is an amenable number.

2342309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2342309 is an equidigital number, since it uses as much as digits as its factorization.

2342309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2342309 is about 1530.4603882492. The cubic root of 2342309 is about 132.8050926157.

The spelling of 2342309 in words is "two million, three hundred forty-two thousand, three hundred nine".