422985 has 16 divisors (see below), whose sum is σ = 684864. Its totient is φ = 222912.

The previous prime is 422969. The next prime is 422987. The reversal of 422985 is 589224.

It is not a de Polignac number, because 422985 - 2⁴ = 422969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422987) 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, 2359 + ... + 2531.

It is an arithmetic number, because the mean of its divisors is an integer number (42804).

2⁴²²⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

422985 is a deficient number, since it is larger than the sum of its proper divisors (261879).

422985 is a wasteful number, since it uses less digits than its factorization.

422985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its digits is 5760, while the sum is 30.

The square root of 422985 is about 650.3729699180. The cubic root of 422985 is about 75.0657201724.

The spelling of 422985 in words is "four hundred twenty-two thousand, nine hundred eighty-five".