426844479 has 4 divisors (see below), whose sum is σ = 569125976. Its totient is φ = 284562984.

The previous prime is 426844477. The next prime is 426844513. The reversal of 426844479 is 974448624.

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

It is not a de Polignac number, because 426844479 - 2¹ = 426844477 is a prime.

It is a super-3 number, since 3×426844479³ (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 (426844477) 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, 71140744 + ... + 71140749.

It is an arithmetic number, because the mean of its divisors is an integer number (142281494).

Almost surely, 2^426844479 is an apocalyptic number.

426844479 is a deficient number, since it is larger than the sum of its proper divisors (142281497).

426844479 is a wasteful number, since it uses less digits than its factorization.

426844479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142281496.

The product of its digits is 1548288, while the sum is 48.

The square root of 426844479 is about 20660.2148827160. The cubic root of 426844479 is about 752.9333884629.

The spelling of 426844479 in words is "four hundred twenty-six million, eight hundred forty-four thousand, four hundred seventy-nine".