426140 has 48 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 142080.

The previous prime is 426131. The next prime is 426161. The reversal of 426140 is 41624.

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, 2786 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (22050).

2⁴²⁶¹⁴⁰ 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 426140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529200).

426140 is an abundant number, since it is smaller than the sum of its proper divisors (632260).

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

426140 is a wasteful number, since it uses less digits than its factorization.

426140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 426140 is about 652.7939950704. The cubic root of 426140 is about 75.2518937872.

Adding to 426140 its reverse (41624), we get a palindrome (467764).

The spelling of 426140 in words is "four hundred twenty-six thousand, one hundred forty".