423844841 has 4 divisors (see below), whose sum is σ = 484394112. Its totient is φ = 363295572.

The previous prime is 423844829. The next prime is 423844859. The reversal of 423844841 is 148448324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423844841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423844795 and 423844804.

It is not an unprimeable number, because it can be changed into a prime (423844801) 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, 30274625 + ... + 30274638.

It is an arithmetic number, because the mean of its divisors is an integer number (121098528).

Almost surely, 2^423844841 is an apocalyptic number.

It is an amenable number.

423844841 is a deficient number, since it is larger than the sum of its proper divisors (60549271).

423844841 is an equidigital number, since it uses as much as digits as its factorization.

423844841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60549270.

The product of its digits is 98304, while the sum is 38.

The square root of 423844841 is about 20587.4923436537. The cubic root of 423844841 is about 751.1655010567.

The spelling of 423844841 in words is "four hundred twenty-three million, eight hundred forty-four thousand, eight hundred forty-one".