4140043 has 8 divisors (see below), whose sum is σ = 4384400. Its totient is φ = 3898368.

The previous prime is 4140029. The next prime is 4140047. The reversal of 4140043 is 3400414.

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

It is a 10-Lehmer number, since φ(4140043) divides (4140043-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 4140043 - 2¹³ = 4131851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4139999 and 4140026.

It is not an unprimeable number, because it can be changed into a prime (4140047) 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, 3103 + ... + 4231.

It is an arithmetic number, because the mean of its divisors is an integer number (548050).

Almost surely, 2^4140043 is an apocalyptic number.

4140043 is a deficient number, since it is larger than the sum of its proper divisors (244357).

4140043 is a wasteful number, since it uses less digits than its factorization.

4140043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 4140043 is about 2034.7095615837. The cubic root of 4140043 is about 160.5714332829.

Adding to 4140043 its reverse (3400414), we get a palindrome (7540457).

The spelling of 4140043 in words is "four million, one hundred forty thousand, forty-three".