2040000205 has 4 divisors (see below), whose sum is σ = 2448000252. Its totient is φ = 1632000160.

The previous prime is 2040000199. The next prime is 2040000211. The reversal of 2040000205 is 5020000402.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2040000199) and next prime (2040000211).

It can be written as a sum of positive squares in 2 ways, for example, as 226773481 + 1813226724 = 15059^2 + 42582^2 .

It is not a de Polignac number, because 2040000205 - 2¹³ = 2039992013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204000016 + ... + 204000025.

It is an arithmetic number, because the mean of its divisors is an integer number (612000063).

Almost surely, 2^2040000205 is an apocalyptic number.

It is an amenable number.

2040000205 is a deficient number, since it is larger than the sum of its proper divisors (408000047).

2040000205 is an equidigital number, since it uses as much as digits as its factorization.

2040000205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408000046.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 2040000205 is about 45166.3614319329. The cubic root of 2040000205 is about 1268.2651835597.

Adding to 2040000205 its reverse (5020000402), we get a palindrome (7060000607).

The spelling of 2040000205 in words is "two billion, forty million, two hundred five", and thus it is an aban number.