4022543 has 8 divisors (see below), whose sum is σ = 4622112. Its totient is φ = 3429216.

The previous prime is 4022507. The next prime is 4022549. The reversal of 4022543 is 3452204.

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

It is not a de Polignac number, because 4022543 - 2⁸ = 4022287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022549) 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, 80 + ... + 2837.

It is an arithmetic number, because the mean of its divisors is an integer number (577764).

Almost surely, 2^4022543 is an apocalyptic number.

4022543 is a deficient number, since it is larger than the sum of its proper divisors (599569).

4022543 is a wasteful number, since it uses less digits than its factorization.

4022543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121.

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

The square root of 4022543 is about 2005.6278318771. The cubic root of 4022543 is about 159.0377532544.

Adding to 4022543 its reverse (3452204), we get a palindrome (7474747).

The spelling of 4022543 in words is "four million, twenty-two thousand, five hundred forty-three".