422544688 has 20 divisors (see below), whose sum is σ = 838649448. Its totient is φ = 206119040.

The previous prime is 422544653. The next prime is 422544719. The reversal of 422544688 is 886445224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321406 + ... + 322717.

Almost surely, 2^422544688 is an apocalyptic number.

It is an amenable number.

422544688 is a deficient number, since it is larger than the sum of its proper divisors (416104760).

422544688 is a wasteful number, since it uses less digits than its factorization.

422544688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644172 (or 644166 counting only the distinct ones).

The product of its digits is 491520, while the sum is 43.

The square root of 422544688 is about 20555.8918074600. The cubic root of 422544688 is about 750.3966423443.

The spelling of 422544688 in words is "four hundred twenty-two million, five hundred forty-four thousand, six hundred eighty-eight".