2309440965 has 32 divisors (see below), whose sum is σ = 3983769216. Its totient is φ = 1135691520.

The previous prime is 2309440949. The next prime is 2309440967. The reversal of 2309440965 is 5690449032.

It is not a de Polignac number, because 2309440965 - 2⁴ = 2309440949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2309440967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183247 + ... + 195443.

It is an arithmetic number, because the mean of its divisors is an integer number (124492788).

Almost surely, 2^2309440965 is an apocalyptic number.

It is an amenable number.

2309440965 is a deficient number, since it is larger than the sum of its proper divisors (1674328251).

2309440965 is a wasteful number, since it uses less digits than its factorization.

2309440965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13189.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 2309440965 is about 48056.6432972591. The cubic root of 2309440965 is about 1321.8097622293.

Adding to 2309440965 its reverse (5690449032), we get a palindrome (7999889997).

The spelling of 2309440965 in words is "two billion, three hundred nine million, four hundred forty thousand, nine hundred sixty-five".