422638863 has 16 divisors (see below), whose sum is σ = 567178752. Its totient is φ = 279936000.

The previous prime is 422638849. The next prime is 422638877. The reversal of 422638863 is 368836224.

It is an interprime number because it is at equal distance from previous prime (422638849) and next prime (422638877).

It is not a de Polignac number, because 422638863 - 2¹² = 422634767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422638163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520728 + ... + 521538.

It is an arithmetic number, because the mean of its divisors is an integer number (35448672).

Almost surely, 2^422638863 is an apocalyptic number.

422638863 is a deficient number, since it is larger than the sum of its proper divisors (144539889).

422638863 is a wasteful number, since it uses less digits than its factorization.

422638863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its digits is 331776, while the sum is 42.

The square root of 422638863 is about 20558.1823856099. The cubic root of 422638863 is about 750.4523866291.

The spelling of 422638863 in words is "four hundred twenty-two million, six hundred thirty-eight thousand, eight hundred sixty-three".