2000538081 has 12 divisors (see below), whose sum is σ = 2996691152. Its totient is φ = 1333691892.

The previous prime is 2000538079. The next prime is 2000538083. The reversal of 2000538081 is 1808350002.

It is a happy number.

2000538081 is a `hidden beast` number, since 200 + 0 + 5 + 380 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (2000538079) and next prime (2000538083).

It is not a de Polignac number, because 2000538081 - 2¹ = 2000538079 is a prime.

It is a super-2 number, since 2×2000538081² = 8004305227062325122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000538083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4116091 + ... + 4116576.

Almost surely, 2^2000538081 is an apocalyptic number.

It is an amenable number.

2000538081 is a deficient number, since it is larger than the sum of its proper divisors (996153071).

2000538081 is an frugal number, since it uses more digits than its factorization.

2000538081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232682 (or 8232670 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 2000538081 is about 44727.3750738851. The cubic root of 2000538081 is about 1260.0340296932.

Adding to 2000538081 its reverse (1808350002), we get a palindrome (3808888083).

The spelling of 2000538081 in words is "two billion, five hundred thirty-eight thousand, eighty-one".