422766189 has 16 divisors (see below), whose sum is σ = 646525440. Its totient is φ = 272751840.

The previous prime is 422766167. The next prime is 422766191. The reversal of 422766189 is 981667224.

It is a happy number.

422766189 is a `hidden beast` number, since 4 + 2 + 27 + 6 + 618 + 9 = 666.

It is not a de Polignac number, because 422766189 - 2⁸ = 422765933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422766119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251712 + ... + 253385.

It is an arithmetic number, because the mean of its divisors is an integer number (40407840).

Almost surely, 2^422766189 is an apocalyptic number.

It is an amenable number.

422766189 is a deficient number, since it is larger than the sum of its proper divisors (223759251).

422766189 is a wasteful number, since it uses less digits than its factorization.

422766189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505137 (or 505131 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 422766189 is about 20561.2788755953. The cubic root of 422766189 is about 750.5277405661.

The spelling of 422766189 in words is "four hundred twenty-two million, seven hundred sixty-six thousand, one hundred eighty-nine".