422645566 has 8 divisors (see below), whose sum is σ = 724535280. Its totient is φ = 181133808.

The previous prime is 422645533. The next prime is 422645569. The reversal of 422645566 is 665546224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422645569) 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, 15094471 + ... + 15094498.

It is an arithmetic number, because the mean of its divisors is an integer number (90566910).

Almost surely, 2^422645566 is an apocalyptic number.

422645566 is a deficient number, since it is larger than the sum of its proper divisors (301889714).

422645566 is a wasteful number, since it uses less digits than its factorization.

422645566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30188978.

The product of its digits is 345600, while the sum is 40.

The square root of 422645566 is about 20558.3454100762. The cubic root of 422645566 is about 750.4563539688.

The spelling of 422645566 in words is "four hundred twenty-two million, six hundred forty-five thousand, five hundred sixty-six".