423238671 has 18 divisors (see below), whose sum is σ = 628332432. Its totient is φ = 274525200.

The previous prime is 423238643. The next prime is 423238687. The reversal of 423238671 is 176832324.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-423238671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423238601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4855 + ... + 29496.

Almost surely, 2^423238671 is an apocalyptic number.

423238671 is a deficient number, since it is larger than the sum of its proper divisors (205093761).

423238671 is a wasteful number, since it uses less digits than its factorization.

423238671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34431 (or 34391 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 423238671 is about 20572.7652735358. The cubic root of 423238671 is about 750.8072321899.

The spelling of 423238671 in words is "four hundred twenty-three million, two hundred thirty-eight thousand, six hundred seventy-one".