422184421 has 4 divisors (see below), whose sum is σ = 432481644. Its totient is φ = 411887200.

The previous prime is 422184419. The next prime is 422184431. The reversal of 422184421 is 124481224.

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 120780100 + 301404321 = 10990^2 + 17361^2 .

It is a cyclic number.

It is not a de Polignac number, because 422184421 - 2¹ = 422184419 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 422184421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422184431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5148550 + ... + 5148631.

It is an arithmetic number, because the mean of its divisors is an integer number (108120411).

Almost surely, 2^422184421 is an apocalyptic number.

422184421 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

422184421 is a deficient number, since it is larger than the sum of its proper divisors (10297223).

422184421 is a wasteful number, since it uses less digits than its factorization.

422184421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10297222.

The product of its digits is 4096, while the sum is 28.

The square root of 422184421 is about 20547.1268307761. The cubic root of 422184421 is about 750.1833157827.

The spelling of 422184421 in words is "four hundred twenty-two million, one hundred eighty-four thousand, four hundred twenty-one".