4002043431 has 8 divisors (see below), whose sum is σ = 5378074624. Its totient is φ = 2647020600.

The previous prime is 4002043421. The next prime is 4002043433. The reversal of 4002043431 is 1343402004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4002043431 - 2²² = 3997849127 is a prime.

It is a super-2 number, since 2×4002043431² = 32032703247220503522, 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 = 4002043398 and 4002043407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002043433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5251645 + ... + 5252406.

It is an arithmetic number, because the mean of its divisors is an integer number (672259328).

Almost surely, 2^4002043431 is an apocalyptic number.

4002043431 is a deficient number, since it is larger than the sum of its proper divisors (1376031193).

4002043431 is a wasteful number, since it uses less digits than its factorization.

4002043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10504181.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 4002043431 is about 63261.7058812043. The cubic root of 4002043431 is about 1587.6713179942.

Adding to 4002043431 its reverse (1343402004), we get a palindrome (5345445435).

The spelling of 4002043431 in words is "four billion, two million, forty-three thousand, four hundred thirty-one".