423678143 has 12 divisors (see below), whose sum is σ = 487181520. Its totient is φ = 360932736.

The previous prime is 423678127. The next prime is 423678149. The reversal of 423678143 is 341876324.

It is not a de Polignac number, because 423678143 - 2⁴ = 423678127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423678097 and 423678106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423678149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223343 + ... + 225231.

It is an arithmetic number, because the mean of its divisors is an integer number (40598460).

Almost surely, 2^423678143 is an apocalyptic number.

423678143 is a deficient number, since it is larger than the sum of its proper divisors (63503377).

423678143 is an equidigital number, since it uses as much as digits as its factorization.

423678143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2254 (or 2075 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The square root of 423678143 is about 20583.4434194087. The cubic root of 423678143 is about 751.0670104502.

The spelling of 423678143 in words is "four hundred twenty-three million, six hundred seventy-eight thousand, one hundred forty-three".