2013709906 has 16 divisors (see below), whose sum is σ = 3289469400. Its totient is φ = 918960768.

The previous prime is 2013709883. The next prime is 2013709913. The reversal of 2013709906 is 6099073102.

It can be written as a sum of positive squares in 4 ways, for example, as 1649090881 + 364619025 = 40609^2 + 19095^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432801 + ... + 437428.

Almost surely, 2^2013709906 is an apocalyptic number.

2013709906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2013709906 is a deficient number, since it is larger than the sum of its proper divisors (1275759494).

2013709906 is a wasteful number, since it uses less digits than its factorization.

2013709906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870333.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 2013709906 is about 44874.3791711930. The cubic root of 2013709906 is about 1262.7933964521.

The spelling of 2013709906 in words is "two billion, thirteen million, seven hundred nine thousand, nine hundred six".