422351812 has 18 divisors (see below), whose sum is σ = 763734174. Its totient is φ = 204361920.

The previous prime is 422351759. The next prime is 422351827. The reversal of 422351812 is 218153224.

It can be written as a sum of positive squares in only one way, i.e., 286489476 + 135862336 = 16926^2 + 11656^2 .

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 5 ways as a sum of consecutive naturals, for example, 51093 + ... + 58780.

Almost surely, 2^422351812 is an apocalyptic number.

It is an amenable number.

422351812 is a deficient number, since it is larger than the sum of its proper divisors (341382362).

422351812 is a wasteful number, since it uses less digits than its factorization.

422351812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109939 (or 109906 counting only the distinct ones).

The product of its digits is 3840, while the sum is 28.

The square root of 422351812 is about 20551.1997703297. The cubic root of 422351812 is about 750.2824488761.

The spelling of 422351812 in words is "four hundred twenty-two million, three hundred fifty-one thousand, eight hundred twelve".