426500 has 24 divisors (see below), whose sum is σ = 932568. Its totient is φ = 170400.

The previous prime is 426487. The next prime is 426527. The reversal of 426500 is 5624.

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 334084 = 304^2 + 578^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 426500.

It is an unprimeable number.

426500 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 (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74 + ... + 926.

It is an arithmetic number, because the mean of its divisors is an integer number (38857).

2⁴²⁶⁵⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466284).

426500 is an abundant number, since it is smaller than the sum of its proper divisors (506068).

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

426500 is a wasteful number, since it uses less digits than its factorization.

426500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 426500 is about 653.0696746902. The cubic root of 426500 is about 75.2730785752.

The spelling of 426500 in words is "four hundred twenty-six thousand, five hundred".