422030143 has 4 divisors (see below), whose sum is σ = 422837608. Its totient is φ = 421222680.

The previous prime is 422030111. The next prime is 422030153. The reversal of 422030143 is 341030224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422030143 - 2⁵ = 422030111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422030143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422030153) 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, 402948 + ... + 403993.

It is an arithmetic number, because the mean of its divisors is an integer number (105709402).

Almost surely, 2^422030143 is an apocalyptic number.

422030143 is a deficient number, since it is larger than the sum of its proper divisors (807465).

422030143 is an equidigital number, since it uses as much as digits as its factorization.

422030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807464.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 422030143 is about 20543.3722402141. The cubic root of 422030143 is about 750.0919253251.

Adding to 422030143 its reverse (341030224), we get a palindrome (763060367).

The spelling of 422030143 in words is "four hundred twenty-two million, thirty thousand, one hundred forty-three".