422071243 has 4 divisors (see below), whose sum is σ = 460441368. Its totient is φ = 383701120.

The previous prime is 422071241. The next prime is 422071259. The reversal of 422071243 is 342170224.

It is a happy number.

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

It is not a de Polignac number, because 422071243 - 2¹ = 422071241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422071241) 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, 19185046 + ... + 19185067.

It is an arithmetic number, because the mean of its divisors is an integer number (115110342).

Almost surely, 2^422071243 is an apocalyptic number.

422071243 is a deficient number, since it is larger than the sum of its proper divisors (38370125).

422071243 is a wasteful number, since it uses less digits than its factorization.

422071243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38370124.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 422071243 is about 20544.3725384836. The cubic root of 422071243 is about 750.1162741210.

The spelling of 422071243 in words is "four hundred twenty-two million, seventy-one thousand, two hundred forty-three".