422220306 has 8 divisors (see below), whose sum is σ = 844440624. Its totient is φ = 140740100.

The previous prime is 422220287. The next prime is 422220373. The reversal of 422220306 is 603022224.

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

422220306 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35185020 + ... + 35185031.

It is an arithmetic number, because the mean of its divisors is an integer number (105555078).

Almost surely, 2^422220306 is an apocalyptic number.

422220306 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422220306 is a wasteful number, since it uses less digits than its factorization.

422220306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70370056.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 422220306 is about 20548.0000486665. Note that the first 4 decimals coincide. The cubic root of 422220306 is about 750.2045699742.

The spelling of 422220306 in words is "four hundred twenty-two million, two hundred twenty thousand, three hundred six".