422142512 has 20 divisors (see below), whose sum is σ = 892256136. Its totient is φ = 191882880.

The previous prime is 422142401. The next prime is 422142517. The reversal of 422142512 is 215241224.

It is not an unprimeable number, because it can be changed into a prime (422142517) 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 in 3 ways as a sum of consecutive naturals, for example, 1199093 + ... + 1199444.

Almost surely, 2^422142512 is an apocalyptic number.

It is an amenable number.

422142512 is an abundant number, since it is smaller than the sum of its proper divisors (470113624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422142512 is a wasteful number, since it uses less digits than its factorization.

422142512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398556 (or 2398550 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 422142512 is about 20546.1069791822. The cubic root of 422142512 is about 750.1584921343.

Adding to 422142512 its reverse (215241224), we get a palindrome (637383736).

The spelling of 422142512 in words is "four hundred twenty-two million, one hundred forty-two thousand, five hundred twelve".