2030840881 has 4 divisors (see below), whose sum is σ = 2030931700. Its totient is φ = 2030750064.

The previous prime is 2030840879. The next prime is 2030840887. The reversal of 2030840881 is 1880480302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1560645025 + 470195856 = 39505^2 + 21684^2 .

It is a cyclic number.

It is not a de Polignac number, because 2030840881 - 2¹ = 2030840879 is a prime.

It is a super-2 number, since 2×2030840881² = 8248629367881712322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2030840887) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14335 + ... + 65323.

It is an arithmetic number, because the mean of its divisors is an integer number (507732925).

Almost surely, 2^2030840881 is an apocalyptic number.

It is an amenable number.

2030840881 is a deficient number, since it is larger than the sum of its proper divisors (90819).

2030840881 is an equidigital number, since it uses as much as digits as its factorization.

2030840881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90818.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 2030840881 is about 45064.8519469442. The cubic root of 2030840881 is about 1266.3642228585.

The spelling of 2030840881 in words is "two billion, thirty million, eight hundred forty thousand, eight hundred eighty-one".