4043542 has 16 divisors (see below), whose sum is σ = 6456240. Its totient is φ = 1893888.

The previous prime is 4043539. The next prime is 4043549. The reversal of 4043542 is 2453404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043549) 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, 3138 + ... + 4234.

It is an arithmetic number, because the mean of its divisors is an integer number (403515).

Almost surely, 2^4043542 is an apocalyptic number.

4043542 is a deficient number, since it is larger than the sum of its proper divisors (2412698).

4043542 is a wasteful number, since it uses less digits than its factorization.

4043542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 4043542 is about 2010.8560366172. The cubic root of 4043542 is about 159.3140162425.

Adding to 4043542 its reverse (2453404), we get a palindrome (6496946).

The spelling of 4043542 in words is "four million, forty-three thousand, five hundred forty-two".