2009375399 has 4 divisors (see below), whose sum is σ = 2009723640. Its totient is φ = 2009027160.

The previous prime is 2009375371. The next prime is 2009375471. The reversal of 2009375399 is 9935739002.

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 2009375399 - 2²⁰ = 2008326823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009375309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 165317 + ... + 177054.

It is an arithmetic number, because the mean of its divisors is an integer number (502430910).

Almost surely, 2^2009375399 is an apocalyptic number.

2009375399 is a deficient number, since it is larger than the sum of its proper divisors (348241).

2009375399 is an equidigital number, since it uses as much as digits as its factorization.

2009375399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348240.

The product of its (nonzero) digits is 459270, while the sum is 47.

The square root of 2009375399 is about 44826.0571431394. The cubic root of 2009375399 is about 1261.8866920656.

The spelling of 2009375399 in words is "two billion, nine million, three hundred seventy-five thousand, three hundred ninety-nine".