426841909 has 8 divisors (see below), whose sum is σ = 460284440. Its totient is φ = 393486336.

The previous prime is 426841907. The next prime is 426841927. The reversal of 426841909 is 909148624.

It can be written as a sum of positive squares in 4 ways, for example, as 1575025 + 425266884 = 1255^2 + 20622^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 426841909 - 2¹ = 426841907 is a prime.

It is a super-3 number, since 3×426841909³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426841907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11352 + ... + 31345.

It is an arithmetic number, because the mean of its divisors is an integer number (57535555).

Almost surely, 2^426841909 is an apocalyptic number.

It is an amenable number.

426841909 is a deficient number, since it is larger than the sum of its proper divisors (33442531).

426841909 is a wasteful number, since it uses less digits than its factorization.

426841909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43479.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 426841909 is about 20660.1526857862. The cubic root of 426841909 is about 752.9318773406.

The spelling of 426841909 in words is "four hundred twenty-six million, eight hundred forty-one thousand, nine hundred nine".