4000423403 has 2 divisors, whose sum is σ = 4000423404. Its totient is φ = 4000423402.

The previous prime is 4000423379. The next prime is 4000423417. The reversal of 4000423403 is 3043240004.

It is a happy number.

4000423403 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4000423403 - 2²⁴ = 3983646187 is a prime.

It is not a weakly prime, because it can be changed into another prime (4000423103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000211701 + 2000211702.

It is an arithmetic number, because the mean of its divisors is an integer number (2000211702).

Almost surely, 2^4000423403 is an apocalyptic number.

4000423403 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000423403 is an equidigital number, since it uses as much as digits as its factorization.

4000423403 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 4000423403 is about 63248.9004094142. The cubic root of 4000423403 is about 1587.4570591894.

Adding to 4000423403 its reverse (3043240004), we get a palindrome (7043663407).

The spelling of 4000423403 in words is "four billion, four hundred twenty-three thousand, four hundred three".