426040565 has 8 divisors (see below), whose sum is σ = 511371168. Its totient is φ = 340750800.

The previous prime is 426040529. The next prime is 426040579. The reversal of 426040565 is 565040624.

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

It is not a de Polignac number, because 426040565 - 2⁶ = 426040501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21974 + ... + 36536.

It is an arithmetic number, because the mean of its divisors is an integer number (63921396).

Almost surely, 2^426040565 is an apocalyptic number.

It is an amenable number.

426040565 is a deficient number, since it is larger than the sum of its proper divisors (85330603).

426040565 is a wasteful number, since it uses less digits than its factorization.

426040565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20419.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 426040565 is about 20640.7501074937. The cubic root of 426040565 is about 752.4604026948.

The spelling of 426040565 in words is "four hundred twenty-six million, forty thousand, five hundred sixty-five".