4040042443 has 2 divisors, whose sum is σ = 4040042444. Its totient is φ = 4040042442.

The previous prime is 4040042429. The next prime is 4040042453. The reversal of 4040042443 is 3442400404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4040042443 - 2⁵ = 4040042411 is a prime.

It is a super-3 number, since 3×4040042443³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4040042423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020021221 + 2020021222.

It is an arithmetic number, because the mean of its divisors is an integer number (2020021222).

Almost surely, 2^4040042443 is an apocalyptic number.

4040042443 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040042443 is an equidigital number, since it uses as much as digits as its factorization.

4040042443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 4040042443 is about 63561.3282035547. The cubic root of 4040042443 is about 1592.6804257227.

Adding to 4040042443 its reverse (3442400404), we get a palindrome (7482442847).

The spelling of 4040042443 in words is "four billion, forty million, forty-two thousand, four hundred forty-three".