2323809 has 24 divisors (see below), whose sum is σ = 3555552. Its totient is φ = 1516320.

The previous prime is 2323801. The next prime is 2323813. The reversal of 2323809 is 9083232.

2323809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2323809 - 2³ = 2323801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2323801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17674 + ... + 17804.

It is an arithmetic number, because the mean of its divisors is an integer number (148148).

2^2323809 is an apocalyptic number.

It is an amenable number.

2323809 is a deficient number, since it is larger than the sum of its proper divisors (1231743).

2323809 is an equidigital number, since it uses as much as digits as its factorization.

2323809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2323809 is about 1524.4044738848. The cubic root of 2323809 is about 132.4545281251.

It can be divided in two parts, 23 and 23809, that added together give a palindrome (23832).

The spelling of 2323809 in words is "two million, three hundred twenty-three thousand, eight hundred nine".