422586 has 24 divisors (see below), whose sum is σ = 970164. Its totient is φ = 132480.

The previous prime is 422581. The next prime is 422621. The reversal of 422586 is 685224.

It can be written as a sum of positive squares in 2 ways, for example, as 416025 + 6561 = 645^2 + 81^2 .

It is not an unprimeable number, because it can be changed into a prime (422581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385 + ... + 996.

2⁴²²⁵⁸⁶ is an apocalyptic number.

422586 is an abundant number, since it is smaller than the sum of its proper divisors (547578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422586 is a wasteful number, since it uses less digits than its factorization.

422586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1403 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 422586 is about 650.0661504801. The cubic root of 422586 is about 75.0421096859.

Adding to 422586 its product of digits (3840), we get a triangular number (426426 = T₉₂₃).

It can be divided in two parts, 42 and 2586, that added together give a triangular number (2628 = T₇₂).

The spelling of 422586 in words is "four hundred twenty-two thousand, five hundred eighty-six".