422456665 has 8 divisors (see below), whose sum is σ = 509603328. Its totient is φ = 336195120.

The previous prime is 422456627. The next prime is 422456669. The reversal of 422456665 is 566654224.

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

It is not a de Polignac number, because 422456665 - 2¹³ = 422448473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422456669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220227 + ... + 222136.

It is an arithmetic number, because the mean of its divisors is an integer number (63700416).

Almost surely, 2^422456665 is an apocalyptic number.

It is an amenable number.

422456665 is a deficient number, since it is larger than the sum of its proper divisors (87146663).

422456665 is a wasteful number, since it uses less digits than its factorization.

422456665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442559.

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

The square root of 422456665 is about 20553.7506309676. The cubic root of 422456665 is about 750.3445320763.

The spelling of 422456665 in words is "four hundred twenty-two million, four hundred fifty-six thousand, six hundred sixty-five".