422531911 has 4 divisors (see below), whose sum is σ = 422818312. Its totient is φ = 422245512.

The previous prime is 422531909. The next prime is 422531917. The reversal of 422531911 is 119135224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422531911 - 2¹ = 422531909 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 422531911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422531917) 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, 140976 + ... + 143941.

It is an arithmetic number, because the mean of its divisors is an integer number (105704578).

Almost surely, 2^422531911 is an apocalyptic number.

422531911 is a deficient number, since it is larger than the sum of its proper divisors (286401).

422531911 is a wasteful number, since it uses less digits than its factorization.

422531911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286400.

The product of its digits is 2160, while the sum is 28.

The square root of 422531911 is about 20555.5810183025. The cubic root of 422531911 is about 750.3890787147.

The spelling of 422531911 in words is "four hundred twenty-two million, five hundred thirty-one thousand, nine hundred eleven".