423502043 has 4 divisors (see below), whose sum is σ = 423690960. Its totient is φ = 423313128.

The previous prime is 423502031. The next prime is 423502069. The reversal of 423502043 is 340205324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423502043 - 2⁶ = 423501979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423502543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91055 + ... + 95592.

It is an arithmetic number, because the mean of its divisors is an integer number (105922740).

Almost surely, 2^423502043 is an apocalyptic number.

423502043 is a deficient number, since it is larger than the sum of its proper divisors (188917).

423502043 is a wasteful number, since it uses less digits than its factorization.

423502043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188916.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 423502043 is about 20579.1652648984. The cubic root of 423502043 is about 750.9629367709.

Adding to 423502043 its reverse (340205324), we get a palindrome (763707367).

The spelling of 423502043 in words is "four hundred twenty-three million, five hundred two thousand, forty-three".