2309423 has 4 divisors (see below), whose sum is σ = 2343960. Its totient is φ = 2274888.

The previous prime is 2309413. The next prime is 2309441. The reversal of 2309423 is 3249032.

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

It is a cyclic number.

It is not a de Polignac number, because 2309423 - 2¹⁰ = 2308399 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 (2309413) 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 3 ways as a sum of consecutive naturals, for example, 17168 + ... + 17301.

It is an arithmetic number, because the mean of its divisors is an integer number (585990).

2^2309423 is an apocalyptic number.

2309423 is a deficient number, since it is larger than the sum of its proper divisors (34537).

2309423 is an equidigital number, since it uses as much as digits as its factorization.

2309423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34536.

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

The square root of 2309423 is about 1519.6785844382. The cubic root of 2309423 is about 132.1806334795.

The spelling of 2309423 in words is "two million, three hundred nine thousand, four hundred twenty-three".