4030402043 has 2 divisors, whose sum is σ = 4030402044. Its totient is φ = 4030402042.

The previous prime is 4030402031. The next prime is 4030402081. The reversal of 4030402043 is 3402040304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4030402043 - 2⁴ = 4030402027 is a prime.

It is not a weakly prime, because it can be changed into another prime (4030402003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2015201021 + 2015201022.

It is an arithmetic number, because the mean of its divisors is an integer number (2015201022).

Almost surely, 2^4030402043 is an apocalyptic number.

4030402043 is a deficient number, since it is larger than the sum of its proper divisors (1).

4030402043 is an equidigital number, since it uses as much as digits as its factorization.

4030402043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4030402043 is about 63485.4474899563. The cubic root of 4030402043 is about 1591.4125920712.

Adding to 4030402043 its reverse (3402040304), we get a palindrome (7432442347).

The spelling of 4030402043 in words is "four billion, thirty million, four hundred two thousand, forty-three".