2398319923 has 4 divisors (see below), whose sum is σ = 2481020640. Its totient is φ = 2315619208.

The previous prime is 2398319921. The next prime is 2398319939. The reversal of 2398319923 is 3299138932.

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 2398319923 - 2¹ = 2398319921 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398319921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41350315 + ... + 41350372.

It is an arithmetic number, because the mean of its divisors is an integer number (620255160).

Almost surely, 2^2398319923 is an apocalyptic number.

2398319923 is a deficient number, since it is larger than the sum of its proper divisors (82700717).

2398319923 is an equidigital number, since it uses as much as digits as its factorization.

2398319923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82700716.

The product of its digits is 629856, while the sum is 49.

The square root of 2398319923 is about 48972.6446396353. The cubic root of 2398319923 is about 1338.5534108737.

The spelling of 2398319923 in words is "two billion, three hundred ninety-eight million, three hundred nineteen thousand, nine hundred twenty-three".