6406043031 has 28 divisors (see below), whose sum is σ = 9614491432. Its totient is φ = 4266329616.

The previous prime is 6406042997. The next prime is 6406043047. The reversal of 6406043031 is 1303406046.

It is a de Polignac number, because none of the positive numbers 2^k-6406043031 is a prime.

It is a super-2 number, since 2×6406043031² = 82074774630047333922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6406042986 and 6406043004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6406042031) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 810360 + ... + 818226.

It is an arithmetic number, because the mean of its divisors is an integer number (343374694).

Almost surely, 2^6406043031 is an apocalyptic number.

6406043031 is a deficient number, since it is larger than the sum of its proper divisors (3208448401).

6406043031 is an equidigital number, since it uses as much as digits as its factorization.

6406043031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9002 (or 8987 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 6406043031 is about 80037.7600323747. The cubic root of 6406043031 is about 1857.2197093114.

Adding to 6406043031 its reverse (1303406046), we get a palindrome (7709449077).

The spelling of 6406043031 in words is "six billion, four hundred six million, forty-three thousand, thirty-one".