423841785 has 8 divisors (see below), whose sum is σ = 678146880. Its totient is φ = 226048944.

The previous prime is 423841729. The next prime is 423841801. The reversal of 423841785 is 587148324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423841785 - 2⁹ = 423841273 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14128045 + ... + 14128074.

It is an arithmetic number, because the mean of its divisors is an integer number (84768360).

Almost surely, 2^423841785 is an apocalyptic number.

It is an amenable number.

423841785 is a deficient number, since it is larger than the sum of its proper divisors (254305095).

423841785 is a wasteful number, since it uses less digits than its factorization.

423841785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28256127.

The product of its digits is 215040, while the sum is 42.

The square root of 423841785 is about 20587.4181236988. The cubic root of 423841785 is about 751.1636957048.

The spelling of 423841785 in words is "four hundred twenty-three million, eight hundred forty-one thousand, seven hundred eighty-five".