422142243 has 8 divisors (see below), whose sum is σ = 564633168. Its totient is φ = 280539744.

The previous prime is 422142229. The next prime is 422142263. The reversal of 422142243 is 342241224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422142243 - 2⁵ = 422142211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422142263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220996 + ... + 222897.

It is an arithmetic number, because the mean of its divisors is an integer number (70579146).

Almost surely, 2^422142243 is an apocalyptic number.

422142243 is a deficient number, since it is larger than the sum of its proper divisors (142490925).

422142243 is a wasteful number, since it uses less digits than its factorization.

422142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444213.

The product of its digits is 3072, while the sum is 24.

The square root of 422142243 is about 20546.1004329289. The cubic root of 422142243 is about 750.1583327942.

Adding to 422142243 its reverse (342241224), we get a palindrome (764383467).

It can be divided in two parts, 4221 and 42243, that added together give a palindrome (46464).

The spelling of 422142243 in words is "four hundred twenty-two million, one hundred forty-two thousand, two hundred forty-three".