426109 has 4 divisors (see below), whose sum is σ = 427420. Its totient is φ = 424800.

The previous prime is 426103. The next prime is 426131. The reversal of 426109 is 901624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 205209 + 220900 = 453^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 426109 - 2⁵ = 426077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247 + ... + 955.

It is an arithmetic number, because the mean of its divisors is an integer number (106855).

2⁴²⁶¹⁰⁹ is an apocalyptic number.

It is an amenable number.

426109 is a deficient number, since it is larger than the sum of its proper divisors (1311).

426109 is an equidigital number, since it uses as much as digits as its factorization.

426109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 426109 is about 652.7702505476. The cubic root of 426109 is about 75.2500689837.

It can be divided in two parts, 426 and 109, that added together give a palindrome (535).

The spelling of 426109 in words is "four hundred twenty-six thousand, one hundred nine".