423242441 has 4 divisors (see below), whose sum is σ = 423408384. Its totient is φ = 423076500.

The previous prime is 423242429. The next prime is 423242497. The reversal of 423242441 is 144242324.

It is a happy number.

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-423242441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423242441.

It is not an unprimeable number, because it can be changed into a prime (423232441) 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, 79085 + ... + 84266.

It is an arithmetic number, because the mean of its divisors is an integer number (105852096).

Almost surely, 2^423242441 is an apocalyptic number.

It is an amenable number.

423242441 is a deficient number, since it is larger than the sum of its proper divisors (165943).

423242441 is a wasteful number, since it uses less digits than its factorization.

423242441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165942.

The product of its digits is 6144, while the sum is 26.

The square root of 423242441 is about 20572.8568993225. The cubic root of 423242441 is about 750.8094614560.

Adding to 423242441 its reverse (144242324), we get a palindrome (567484765).

The spelling of 423242441 in words is "four hundred twenty-three million, two hundred forty-two thousand, four hundred forty-one".