426185 has 4 divisors (see below), whose sum is σ = 511428. Its totient is φ = 340944.

The previous prime is 426163. The next prime is 426193. The reversal of 426185 is 581624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222784 + 203401 = 472^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 426185 - 2¹² = 422089 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426185.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42614 + ... + 42623.

It is an arithmetic number, because the mean of its divisors is an integer number (127857).

2⁴²⁶¹⁸⁵ is an apocalyptic number.

It is an amenable number.

426185 is a deficient number, since it is larger than the sum of its proper divisors (85243).

426185 is an equidigital number, since it uses as much as digits as its factorization.

426185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85242.

The product of its digits is 1920, while the sum is 26.

The square root of 426185 is about 652.8284613894. The cubic root of 426185 is about 75.2545425380.

The spelling of 426185 in words is "four hundred twenty-six thousand, one hundred eighty-five".