426570 has 32 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 111360.

The previous prime is 426563. The next prime is 426583. The reversal of 426570 is 75624.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 426570.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1650 + ... + 1890.

It is an arithmetic number, because the mean of its divisors is an integer number (32670).

2⁴²⁶⁵⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (522720).

426570 is an abundant number, since it is smaller than the sum of its proper divisors (618870).

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

426570 is a wasteful number, since it uses less digits than its factorization.

426570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 426570 is about 653.1232655479. The cubic root of 426570 is about 75.2771964551.

The spelling of 426570 in words is "four hundred twenty-six thousand, five hundred seventy".