422170730 has 16 divisors (see below), whose sum is σ = 760241160. Its totient is φ = 168794112.

The previous prime is 422170729. The next prime is 422170751. The reversal of 422170730 is 37071224.

It can be written as a sum of positive squares in 4 ways, for example, as 312193561 + 109977169 = 17669^2 + 10487^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 422170730.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18626 + ... + 34514.

Almost surely, 2^422170730 is an apocalyptic number.

422170730 is a deficient number, since it is larger than the sum of its proper divisors (338070430).

422170730 is a wasteful number, since it uses less digits than its factorization.

422170730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18553.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 422170730 is about 20546.7936671394. The cubic root of 422170730 is about 750.1752064745.

The spelling of 422170730 in words is "four hundred twenty-two million, one hundred seventy thousand, seven hundred thirty".