422643112 has 8 divisors (see below), whose sum is σ = 792455850. Its totient is φ = 211321552.

The previous prime is 422643107. The next prime is 422643113. The reversal of 422643112 is 211346224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 236975236 + 185667876 = 15394^2 + 13626^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (422643113) by changing a digit.

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 as a sum of consecutive naturals, namely, 26415187 + ... + 26415202.

Almost surely, 2^422643112 is an apocalyptic number.

It is an amenable number.

422643112 is a deficient number, since it is larger than the sum of its proper divisors (369812738).

422643112 is a wasteful number, since it uses less digits than its factorization.

422643112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52830395 (or 52830391 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 422643112 is about 20558.2857261981. The cubic root of 422643112 is about 750.4549015119.

Adding to 422643112 its reverse (211346224), we get a palindrome (633989336).

The spelling of 422643112 in words is "four hundred twenty-two million, six hundred forty-three thousand, one hundred twelve".