422246891 has 4 divisors (see below), whose sum is σ = 460632984. Its totient is φ = 383860800.

The previous prime is 422246843. The next prime is 422246897. The reversal of 422246891 is 198642224.

It is a happy number.

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 422246891 - 2⁶ = 422246827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422246897) 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, 19193030 + ... + 19193051.

It is an arithmetic number, because the mean of its divisors is an integer number (115158246).

Almost surely, 2^422246891 is an apocalyptic number.

422246891 is a deficient number, since it is larger than the sum of its proper divisors (38386093).

422246891 is a wasteful number, since it uses less digits than its factorization.

422246891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38386092.

The product of its digits is 55296, while the sum is 38.

The square root of 422246891 is about 20548.6469384240. The cubic root of 422246891 is about 750.2203151272.

The spelling of 422246891 in words is "four hundred twenty-two million, two hundred forty-six thousand, eight hundred ninety-one".