422650189 has 4 divisors (see below), whose sum is σ = 455161756. Its totient is φ = 390138624.

The previous prime is 422650183. The next prime is 422650199. The reversal of 422650189 is 981056224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22250089 + 400400100 = 4717^2 + 20010^2 .

It is a cyclic number.

It is not a de Polignac number, because 422650189 - 2⁷ = 422650061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422650183) 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, 16255764 + ... + 16255789.

It is an arithmetic number, because the mean of its divisors is an integer number (113790439).

Almost surely, 2^422650189 is an apocalyptic number.

It is an amenable number.

422650189 is a deficient number, since it is larger than the sum of its proper divisors (32511567).

422650189 is a wasteful number, since it uses less digits than its factorization.

422650189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32511566.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 422650189 is about 20558.4578458599. The cubic root of 422650189 is about 750.4590901835.

The spelling of 422650189 in words is "four hundred twenty-two million, six hundred fifty thousand, one hundred eighty-nine".