423436043 has 2 divisors, whose sum is σ = 423436044. Its totient is φ = 423436042.

The previous prime is 423436009. The next prime is 423436073. The reversal of 423436043 is 340634324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423436043 - 2⁸ = 423435787 is a prime.

It is a super-2 number, since 2×423436043² = 358596165022995698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423435997 and 423436015.

It is not a weakly prime, because it can be changed into another prime (423436073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211718021 + 211718022.

It is an arithmetic number, because the mean of its divisors is an integer number (211718022).

Almost surely, 2^423436043 is an apocalyptic number.

423436043 is a deficient number, since it is larger than the sum of its proper divisors (1).

423436043 is an equidigital number, since it uses as much as digits as its factorization.

423436043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 29.

The square root of 423436043 is about 20577.5616388337. The cubic root of 423436043 is about 750.9239238707.

The spelling of 423436043 in words is "four hundred twenty-three million, four hundred thirty-six thousand, forty-three".