4040543 has 16 divisors (see below), whose sum is σ = 4717440. Its totient is φ = 3426816.

The previous prime is 4040527. The next prime is 4040549. The reversal of 4040543 is 3450404.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4040543 - 2⁴ = 4040527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10193 + ... + 10581.

It is an arithmetic number, because the mean of its divisors is an integer number (294840).

Almost surely, 2^4040543 is an apocalyptic number.

4040543 is a deficient number, since it is larger than the sum of its proper divisors (676897).

4040543 is a wasteful number, since it uses less digits than its factorization.

4040543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4040543 is about 2010.1101959843. The cubic root of 4040543 is about 159.2746200148.

Adding to 4040543 its reverse (3450404), we get a palindrome (7490947).

The spelling of 4040543 in words is "four million, forty thousand, five hundred forty-three".