2028081 has 24 divisors (see below), whose sum is σ = 3072832. Its totient is φ = 1188000.

The previous prime is 2028077. The next prime is 2028101. The reversal of 2028081 is 1808202.

It is not a de Polignac number, because 2028081 - 2² = 2028077 is a prime.

It is a super-2 number, since 2×2028081² = 8226225085122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028281) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13356 + ... + 13506.

2^2028081 is an apocalyptic number.

It is an amenable number.

2028081 is a deficient number, since it is larger than the sum of its proper divisors (1044751).

2028081 is a wasteful number, since it uses less digits than its factorization.

2028081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 202 counting only the distinct ones).

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

The square root of 2028081 is about 1424.1070886699. The cubic root of 2028081 is about 126.5790306407.

The spelling of 2028081 in words is "two million, twenty-eight thousand, eighty-one".