2399373891 has 12 divisors (see below), whose sum is σ = 3559432032. Its totient is φ = 1556350416.

The previous prime is 2399373887. The next prime is 2399373901. The reversal of 2399373891 is 1983739932.

It is not a de Polignac number, because 2399373891 - 2² = 2399373887 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2399373091) 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 11 ways as a sum of consecutive naturals, for example, 3602331 + ... + 3602996.

It is an arithmetic number, because the mean of its divisors is an integer number (296619336).

Almost surely, 2^2399373891 is an apocalyptic number.

2399373891 is a deficient number, since it is larger than the sum of its proper divisors (1160058141).

2399373891 is a wasteful number, since it uses less digits than its factorization.

2399373891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7205370 (or 7205367 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 2399373891 is about 48983.4042406201. The cubic root of 2399373891 is about 1338.7494628176.

The spelling of 2399373891 in words is "two billion, three hundred ninety-nine million, three hundred seventy-three thousand, eight hundred ninety-one".