422782 has 8 divisors (see below), whose sum is σ = 639216. Its totient is φ = 209712.

The previous prime is 422761. The next prime is 422789. The reversal of 422782 is 287224.

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 (422789) by changing a digit.

422782 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 498 + ... + 1045.

It is an arithmetic number, because the mean of its divisors is an integer number (79902).

2⁴²²⁷⁸² is an apocalyptic number.

422782 is a deficient number, since it is larger than the sum of its proper divisors (216434).

422782 is a wasteful number, since it uses less digits than its factorization.

422782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1682.

The product of its digits is 1792, while the sum is 25.

The square root of 422782 is about 650.2168868924. The cubic root of 422782 is about 75.0537096759.

The spelling of 422782 in words is "four hundred twenty-two thousand, seven hundred eighty-two".