422142312 has 16 divisors (see below), whose sum is σ = 1055355840. Its totient is φ = 140714096.

The previous prime is 422142293. The next prime is 422142313. The reversal of 422142312 is 213241224.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (422142313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8794608 + ... + 8794655.

It is an arithmetic number, because the mean of its divisors is an integer number (65959740).

Almost surely, 2^422142312 is an apocalyptic number.

It is an amenable number.

422142312 is an abundant number, since it is smaller than the sum of its proper divisors (633213528).

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

422142312 is a wasteful number, since it uses less digits than its factorization.

422142312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17589272 (or 17589268 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 422142312 is about 20546.1021120796. The cubic root of 422142312 is about 750.1583736658.

Adding to 422142312 its reverse (213241224), we get a palindrome (635383536).

The spelling of 422142312 in words is "four hundred twenty-two million, one hundred forty-two thousand, three hundred twelve".