422388686 has 8 divisors (see below), whose sum is σ = 634546440. Its totient is φ = 210873208.

The previous prime is 422388667. The next prime is 422388697. The reversal of 422388686 is 686883224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 422388686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158921 + ... + 161556.

It is an arithmetic number, because the mean of its divisors is an integer number (79318305).

Almost surely, 2^422388686 is an apocalyptic number.

422388686 is a deficient number, since it is larger than the sum of its proper divisors (212157754).

422388686 is a wasteful number, since it uses less digits than its factorization.

422388686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321138.

The product of its digits is 884736, while the sum is 47.

The square root of 422388686 is about 20552.0968759881. The cubic root of 422388686 is about 750.3042830509.

The spelling of 422388686 in words is "four hundred twenty-two million, three hundred eighty-eight thousand, six hundred eighty-six".