2398709985 has 24 divisors (see below), whose sum is σ = 4464539136. Its totient is φ = 1096552800.

The previous prime is 2398709969. The next prime is 2398710007. The reversal of 2398709985 is 5899078932.

It is not a de Polignac number, because 2398709985 - 2⁴ = 2398709969 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1631041 + ... + 1632510.

It is an arithmetic number, because the mean of its divisors is an integer number (186022464).

Almost surely, 2^2398709985 is an apocalyptic number.

It is an amenable number.

2398709985 is a deficient number, since it is larger than the sum of its proper divisors (2065829151).

2398709985 is a wasteful number, since it uses less digits than its factorization.

2398709985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263573 (or 3263566 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 60.

The square root of 2398709985 is about 48976.6269255040. The cubic root of 2398709985 is about 1338.6259742422.

The spelling of 2398709985 in words is "two billion, three hundred ninety-eight million, seven hundred nine thousand, nine hundred eighty-five".