2020881 has 8 divisors (see below), whose sum is σ = 2701120. Its totient is φ = 1343952.

The previous prime is 2020877. The next prime is 2020883. The reversal of 2020881 is 1880202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2020881 - 2² = 2020877 is a prime.

It is a super-2 number, since 2×2020881² = 8167920032322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020883) 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 7 ways as a sum of consecutive naturals, for example, 1740 + ... + 2658.

It is an arithmetic number, because the mean of its divisors is an integer number (337640).

2^2020881 is an apocalyptic number.

It is an amenable number.

2020881 is a deficient number, since it is larger than the sum of its proper divisors (680239).

2020881 is an equidigital number, since it uses as much as digits as its factorization.

2020881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 2020881 is about 1421.5769412874. The cubic root of 2020881 is about 126.4290613425.

The spelling of 2020881 in words is "two million, twenty thousand, eight hundred eighty-one".