423643846 has 16 divisors (see below), whose sum is σ = 640507248. Its totient is φ = 210146400.

The previous prime is 423643813. The next prime is 423643873. The reversal of 423643846 is 648346324.

It is a junction number, because it is equal to n+sod(n) for n = 423643799 and 423643808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306076 + ... + 307456.

It is an arithmetic number, because the mean of its divisors is an integer number (40031703).

Almost surely, 2^423643846 is an apocalyptic number.

423643846 is a deficient number, since it is larger than the sum of its proper divisors (216863402).

423643846 is a wasteful number, since it uses less digits than its factorization.

423643846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487.

The product of its digits is 331776, while the sum is 40.

The square root of 423643846 is about 20582.6102814973. The cubic root of 423643846 is about 751.0467434616.

The spelling of 423643846 in words is "four hundred twenty-three million, six hundred forty-three thousand, eight hundred forty-six".