4081431 has 16 divisors (see below), whose sum is σ = 5765760. Its totient is φ = 2563680.

The previous prime is 4081423. The next prime is 4081453. The reversal of 4081431 is 1341804.

It is not a de Polignac number, because 4081431 - 2³ = 4081423 is a prime.

It is a super-2 number, since 2×4081431² = 33316158015522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4081398 and 4081407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4081421) 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 15 ways as a sum of consecutive naturals, for example, 3196 + ... + 4286.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

Almost surely, 2^4081431 is an apocalyptic number.

4081431 is a deficient number, since it is larger than the sum of its proper divisors (1684329).

4081431 is a wasteful number, since it uses less digits than its factorization.

4081431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 4081431 is about 2020.2551819015. The cubic root of 4081431 is about 159.8100741194.

The spelling of 4081431 in words is "four million, eighty-one thousand, four hundred thirty-one".