426909 has 16 divisors (see below), whose sum is σ = 673920. Its totient is φ = 235200.

The previous prime is 426893. The next prime is 426913. The reversal of 426909 is 909624.

It is not a de Polignac number, because 426909 - 2⁴ = 426893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426919) 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, 259 + ... + 959.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2⁴²⁶⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

426909 is a deficient number, since it is larger than the sum of its proper divisors (247011).

426909 is a wasteful number, since it uses less digits than its factorization.

426909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 426909 is about 653.3827362274. The cubic root of 426909 is about 75.2971323878.

The spelling of 426909 in words is "four hundred twenty-six thousand, nine hundred nine".