2000305 has 16 divisors (see below), whose sum is σ = 2577744. Its totient is φ = 1484800.

The previous prime is 2000303. The next prime is 2000309. The reversal of 2000305 is 5030002.

It can be written as a sum of positive squares in 8 ways, for example, as 87616 + 1912689 = 296^2 + 1383^2 .

It is not a de Polignac number, because 2000305 - 2¹ = 2000303 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2000291 and 2000300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000303) 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 15 ways as a sum of consecutive naturals, for example, 8469 + ... + 8701.

It is an arithmetic number, because the mean of its divisors is an integer number (161109).

2^2000305 is an apocalyptic number.

It is an amenable number.

2000305 is a deficient number, since it is larger than the sum of its proper divisors (577439).

2000305 is a wasteful number, since it uses less digits than its factorization.

2000305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 2000305 is about 1414.3213920464. The cubic root of 2000305 is about 125.9985092626.

Adding to 2000305 its reverse (5030002), we get a palindrome (7030307).

The spelling of 2000305 in words is "two million, three hundred five", and thus it is an aban number.