422794221 has 8 divisors (see below), whose sum is σ = 564342720. Its totient is φ = 281554272.

The previous prime is 422794201. The next prime is 422794271. The reversal of 422794221 is 122497224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422794221 - 2¹¹ = 422792173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422794201) 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 7 ways as a sum of consecutive naturals, for example, 73920 + ... + 79433.

It is an arithmetic number, because the mean of its divisors is an integer number (70542840).

Almost surely, 2^422794221 is an apocalyptic number.

It is an amenable number.

422794221 is a deficient number, since it is larger than the sum of its proper divisors (141548499).

422794221 is a wasteful number, since it uses less digits than its factorization.

422794221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154275.

The product of its digits is 16128, while the sum is 33.

The square root of 422794221 is about 20561.9605339569. The cubic root of 422794221 is about 750.5443284021.

The spelling of 422794221 in words is "four hundred twenty-two million, seven hundred ninety-four thousand, two hundred twenty-one".