2309345 has 16 divisors (see below), whose sum is σ = 2930688. Its totient is φ = 1744320.

The previous prime is 2309341. The next prime is 2309347. The reversal of 2309345 is 5439032.

2309345 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 2309345 - 2² = 2309341 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 (2309341) 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 15 ways as a sum of consecutive naturals, for example, 7127 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (183168).

2^2309345 is an apocalyptic number.

It is an amenable number.

2309345 is a deficient number, since it is larger than the sum of its proper divisors (621343).

2309345 is a wasteful number, since it uses less digits than its factorization.

2309345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2309345 is about 1519.6529209000. The cubic root of 2309345 is about 132.1791453436.

The spelling of 2309345 in words is "two million, three hundred nine thousand, three hundred forty-five".