2040813 has 12 divisors (see below), whose sum is σ = 3076320. Its totient is φ = 1301256.

The previous prime is 2040803. The next prime is 2040827. The reversal of 2040813 is 3180402.

It is a happy number.

It is not a de Polignac number, because 2040813 - 2⁵ = 2040781 is a prime.

2040813 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4723 + ... + 5136.

It is an arithmetic number, because the mean of its divisors is an integer number (256360).

2^2040813 is an apocalyptic number.

2040813 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2040813 is a deficient number, since it is larger than the sum of its proper divisors (1035507).

2040813 is a wasteful number, since it uses less digits than its factorization.

2040813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9888 (or 9885 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2040813 is about 1428.5702642852. The cubic root of 2040813 is about 126.8433599021.

The spelling of 2040813 in words is "two million, forty thousand, eight hundred thirteen".