4066431 has 8 divisors (see below), whose sum is σ = 5503104. Its totient is φ = 2670360.

The previous prime is 4066379. The next prime is 4066441. The reversal of 4066431 is 1346604.

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

It is not a de Polignac number, because 4066431 - 2¹¹ = 4064383 is a prime.

It is a super-2 number, since 2×4066431² = 33071722155522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4066441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9915 + ... + 10316.

It is an arithmetic number, because the mean of its divisors is an integer number (687888).

Almost surely, 2^4066431 is an apocalyptic number.

4066431 is a deficient number, since it is larger than the sum of its proper divisors (1436673).

4066431 is a wasteful number, since it uses less digits than its factorization.

4066431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20301.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 4066431 is about 2016.5393623731. The cubic root of 4066431 is about 159.6140567766.

The spelling of 4066431 in words is "four million, sixty-six thousand, four hundred thirty-one".