422311243 has 4 divisors (see below), whose sum is σ = 422352640. Its totient is φ = 422269848.

The previous prime is 422311217. The next prime is 422311259. The reversal of 422311243 is 342113224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422311243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422311343) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6646 + ... + 29812.

It is an arithmetic number, because the mean of its divisors is an integer number (105588160).

Almost surely, 2^422311243 is an apocalyptic number.

422311243 is a deficient number, since it is larger than the sum of its proper divisors (41397).

422311243 is a wasteful number, since it uses less digits than its factorization.

422311243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41396.

The product of its digits is 1152, while the sum is 22.

The square root of 422311243 is about 20550.2127239598. The cubic root of 422311243 is about 750.2584253153.

Adding to 422311243 its reverse (342113224), we get a palindrome (764424467).

The spelling of 422311243 in words is "four hundred twenty-two million, three hundred eleven thousand, two hundred forty-three".