422252788 has 24 divisors (see below), whose sum is σ = 749952000. Its totient is φ = 207992928.

The previous prime is 422252729. The next prime is 422252801. The reversal of 422252788 is 887252224.

It is a self number, because there is not a number n which added to its sum of digits gives 422252788.

It is a congruent number.

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, 174813 + ... + 177211.

It is an arithmetic number, because the mean of its divisors is an integer number (31248000).

Almost surely, 2^422252788 is an apocalyptic number.

It is an amenable number.

422252788 is a deficient number, since it is larger than the sum of its proper divisors (327699212).

422252788 is a wasteful number, since it uses less digits than its factorization.

422252788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3037 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 422252788 is about 20548.7904266894. The cubic root of 422252788 is about 750.2238075773.

The spelling of 422252788 in words is "four hundred twenty-two million, two hundred fifty-two thousand, seven hundred eighty-eight".