422168428 has 24 divisors (see below), whose sum is σ = 833752080. Its totient is φ = 185277120.

The previous prime is 422168419. The next prime is 422168441. The reversal of 422168428 is 824861224.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164151 + ... + 166702.

It is an arithmetic number, because the mean of its divisors is an integer number (34739670).

Almost surely, 2^422168428 is an apocalyptic number.

It is an amenable number.

422168428 is a deficient number, since it is larger than the sum of its proper divisors (411583652).

422168428 is a wasteful number, since it uses less digits than its factorization.

422168428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330897 (or 330895 counting only the distinct ones).

The product of its digits is 49152, while the sum is 37.

The square root of 422168428 is about 20546.7376485903. The cubic root of 422168428 is about 750.1738429610.

The spelling of 422168428 in words is "four hundred twenty-two million, one hundred sixty-eight thousand, four hundred twenty-eight".