422788228 has 48 divisors (see below), whose sum is σ = 802549440. Its totient is φ = 194227200.

The previous prime is 422788213. The next prime is 422788237. The reversal of 422788228 is 822887224.

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 15 ways as a sum of consecutive naturals, for example, 750675 + ... + 751237.

It is an arithmetic number, because the mean of its divisors is an integer number (16719780).

Almost surely, 2^422788228 is an apocalyptic number.

It is an amenable number.

422788228 is a deficient number, since it is larger than the sum of its proper divisors (379761212).

422788228 is a wasteful number, since it uses less digits than its factorization.

422788228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its digits is 229376, while the sum is 43.

The square root of 422788228 is about 20561.8148031734. The cubic root of 422788228 is about 750.5407821274.

The spelling of 422788228 in words is "four hundred twenty-two million, seven hundred eighty-eight thousand, two hundred twenty-eight".