426394559 has 4 divisors (see below), whose sum is σ = 430534416. Its totient is φ = 422254704.

The previous prime is 426394537. The next prime is 426394567. The reversal of 426394559 is 955493624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426394559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426394159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2069774 + ... + 2069979.

It is an arithmetic number, because the mean of its divisors is an integer number (107633604).

Almost surely, 2^426394559 is an apocalyptic number.

426394559 is a deficient number, since it is larger than the sum of its proper divisors (4139857).

426394559 is a wasteful number, since it uses less digits than its factorization.

426394559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139856.

The product of its digits is 1166400, while the sum is 47.

The square root of 426394559 is about 20649.3234513870. The cubic root of 426394559 is about 752.6687496221.

The spelling of 426394559 in words is "four hundred twenty-six million, three hundred ninety-four thousand, five hundred fifty-nine".