2040811 has 4 divisors (see below), whose sum is σ = 2059992. Its totient is φ = 2021632.

The previous prime is 2040803. The next prime is 2040827. The reversal of 2040811 is 1180402.

It is a happy number.

2040811 is nontrivially palindromic in base 6.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1180402 = 2 ⋅590201.

It is a cyclic number.

It is not a de Polignac number, because 2040811 - 2³ = 2040803 is a prime.

It is a Duffinian number.

2040811 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2040851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9430 + ... + 9643.

It is an arithmetic number, because the mean of its divisors is an integer number (514998).

2^2040811 is an apocalyptic number.

2040811 is a deficient number, since it is larger than the sum of its proper divisors (19181).

2040811 is a wasteful number, since it uses less digits than its factorization.

2040811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19180.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2040811 is about 1428.5695642845. The cubic root of 2040811 is about 126.8433184665.

The spelling of 2040811 in words is "two million, forty thousand, eight hundred eleven".