426558 has 32 divisors (see below), whose sum is σ = 974592. Its totient is φ = 123200.

The previous prime is 426553. The next prime is 426563. The reversal of 426558 is 855624.

It is an interprime number because it is at equal distance from previous prime (426553) and next prime (426563).

Its product of digits (9600) is a multiple of the sum of its prime divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426551) 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, 1378 + ... + 1658.

It is an arithmetic number, because the mean of its divisors is an integer number (30456).

2⁴²⁶⁵⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487296).

426558 is an abundant number, since it is smaller than the sum of its proper divisors (548034).

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

426558 is a wasteful number, since it uses less digits than its factorization.

426558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

The product of its digits is 9600, while the sum is 30.

The square root of 426558 is about 653.1140788561. The cubic root of 426558 is about 75.2764905648.

It can be divided in two parts, 4 and 26558, that added together give a palindrome (26562).

The spelling of 426558 in words is "four hundred twenty-six thousand, five hundred fifty-eight".