4002031 has 8 divisors (see below), whose sum is σ = 4484304. Its totient is φ = 3539520.

The previous prime is 4002017. The next prime is 4002041. The reversal of 4002031 is 1302004.

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

It is a cyclic number.

It is not a de Polignac number, because 4002031 - 2⁵ = 4001999 is a prime.

It is a super-2 number, since 2×4002031² = 32032504249922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4001999 and 4002017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4510 + ... + 5323.

It is an arithmetic number, because the mean of its divisors is an integer number (560538).

Almost surely, 2^4002031 is an apocalyptic number.

4002031 is a deficient number, since it is larger than the sum of its proper divisors (482273).

4002031 is a wasteful number, since it uses less digits than its factorization.

4002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 4002031 is about 2000.5076855638. The cubic root of 4002031 is about 158.7669674137.

Adding to 4002031 its reverse (1302004), we get a palindrome (5304035).

The spelling of 4002031 in words is "four million, two thousand, thirty-one".