2013340309 has 4 divisors (see below), whose sum is σ = 2051327916. Its totient is φ = 1975352704.

The previous prime is 2013340253. The next prime is 2013340321. The reversal of 2013340309 is 9030433102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1457559684 + 555780625 = 38178^2 + 23575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013340309 - 2⁷ = 2013340181 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 (2013340349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18993724 + ... + 18993829.

It is an arithmetic number, because the mean of its divisors is an integer number (512831979).

Almost surely, 2^2013340309 is an apocalyptic number.

It is an amenable number.

2013340309 is a deficient number, since it is larger than the sum of its proper divisors (37987607).

2013340309 is an equidigital number, since it uses as much as digits as its factorization.

2013340309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37987606.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 2013340309 is about 44870.2608528188. The cubic root of 2013340309 is about 1262.7161338820.

The spelling of 2013340309 in words is "two billion, thirteen million, three hundred forty thousand, three hundred nine".