2040931 has 4 divisors (see below), whose sum is σ = 2043792. Its totient is φ = 2038072.

The previous prime is 2040919. The next prime is 2040943. The reversal of 2040931 is 1390402.

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 is an interprime number because it is at equal distance from previous prime (2040919) and next prime (2040943).

It is a cyclic number.

It is not a de Polignac number, because 2040931 - 2⁷ = 2040803 is a prime.

It is a super-2 number, since 2×2040931² = 8330798693522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2040899 and 2040908.

It is not an unprimeable number, because it can be changed into a prime (2040971) 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 3 ways as a sum of consecutive naturals, for example, 621 + ... + 2113.

It is an arithmetic number, because the mean of its divisors is an integer number (510948).

2^2040931 is an apocalyptic number.

2040931 is a deficient number, since it is larger than the sum of its proper divisors (2861).

2040931 is a wasteful number, since it uses less digits than its factorization.

2040931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2040931 is about 1428.6115637219. The cubic root of 2040931 is about 126.8458045533.

The spelling of 2040931 in words is "two million, forty thousand, nine hundred thirty-one".