2398038009 has 4 divisors (see below), whose sum is σ = 3197384016. Its totient is φ = 1598692004.

The previous prime is 2398038007. The next prime is 2398038017. The reversal of 2398038009 is 9008308932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2398038009 - 2¹ = 2398038007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2398038007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399672999 + ... + 399673004.

It is an arithmetic number, because the mean of its divisors is an integer number (799346004).

Almost surely, 2^2398038009 is an apocalyptic number.

It is an amenable number.

2398038009 is a deficient number, since it is larger than the sum of its proper divisors (799346007).

2398038009 is an equidigital number, since it uses as much as digits as its factorization.

2398038009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799346006.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2398038009 is about 48969.7662747128. The cubic root of 2398038009 is about 1338.5009614167.

The spelling of 2398038009 in words is "two billion, three hundred ninety-eight million, thirty-eight thousand, nine".