426539505 has 16 divisors (see below), whose sum is σ = 779958144. Its totient is φ = 194989440.

The previous prime is 426539501. The next prime is 426539513. The reversal of 426539505 is 505935624.

It is not a de Polignac number, because 426539505 - 2² = 426539501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (426539501) 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 15 ways as a sum of consecutive naturals, for example, 2031036 + ... + 2031245.

It is an arithmetic number, because the mean of its divisors is an integer number (48747384).

Almost surely, 2^426539505 is an apocalyptic number.

It is an amenable number.

426539505 is a deficient number, since it is larger than the sum of its proper divisors (353418639).

426539505 is a wasteful number, since it uses less digits than its factorization.

426539505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062296.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 426539505 is about 20652.8328565357. The cubic root of 426539505 is about 752.7540258550.

The spelling of 426539505 in words is "four hundred twenty-six million, five hundred thirty-nine thousand, five hundred five".