2003309985 has 16 divisors (see below), whose sum is σ = 3206312064. Its totient is φ = 1068093312.

The previous prime is 2003309963. The next prime is 2003310007. The reversal of 2003309985 is 5899033002.

It is an interprime number because it is at equal distance from previous prime (2003309963) and next prime (2003310007).

It is not a de Polignac number, because 2003309985 - 2⁷ = 2003309857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32044 + ... + 70946.

It is an arithmetic number, because the mean of its divisors is an integer number (200394504).

Almost surely, 2^2003309985 is an apocalyptic number.

It is an amenable number.

2003309985 is a deficient number, since it is larger than the sum of its proper divisors (1203002079).

2003309985 is a wasteful number, since it uses less digits than its factorization.

2003309985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42344.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 2003309985 is about 44758.3510084990. The cubic root of 2003309985 is about 1260.6157201071.

The spelling of 2003309985 in words is "two billion, three million, three hundred nine thousand, nine hundred eighty-five".