423443043 has 24 divisors (see below), whose sum is σ = 638501760. Its totient is φ = 270103680.

The previous prime is 423443011. The next prime is 423443057. The reversal of 423443043 is 340344324.

It is not a de Polignac number, because 423443043 - 2⁵ = 423443011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423442998 and 423443016.

It is not an unprimeable number, because it can be changed into a prime (423443003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16305 + ... + 33357.

It is an arithmetic number, because the mean of its divisors is an integer number (26604240).

Almost surely, 2^423443043 is an apocalyptic number.

423443043 is a deficient number, since it is larger than the sum of its proper divisors (215058717).

423443043 is a wasteful number, since it uses less digits than its factorization.

423443043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17179 (or 17176 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

The square root of 423443043 is about 20577.7317263104. The cubic root of 423443043 is about 750.9280617947.

Adding to 423443043 its reverse (340344324), we get a palindrome (763787367).

The spelling of 423443043 in words is "four hundred twenty-three million, four hundred forty-three thousand, forty-three".