4040404031 has 2 divisors, whose sum is σ = 4040404032. Its totient is φ = 4040404030.

The previous prime is 4040404019. The next prime is 4040404063. The reversal of 4040404031 is 1304040404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4040404031 - 2⁶ = 4040403967 is a prime.

It is a super-2 number, since 2×4040404031² = 32649729467442097922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4040403994 and 4040404012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040404231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020202015 + 2020202016.

It is an arithmetic number, because the mean of its divisors is an integer number (2020202016).

Almost surely, 2^4040404031 is an apocalyptic number.

4040404031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040404031 is an equidigital number, since it uses as much as digits as its factorization.

4040404031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4040404031 is about 63564.1725424000. The cubic root of 4040404031 is about 1592.7279398233.

Adding to 4040404031 its reverse (1304040404), we get a palindrome (5344444435).

It can be divided in two parts, 404040403 and 1, that added together give a palindrome (404040404).

The spelling of 4040404031 in words is "four billion, forty million, four hundred four thousand, thirty-one".