426350565 has 24 divisors (see below), whose sum is σ = 782480088. Its totient is φ = 214010880.

The previous prime is 426350549. The next prime is 426350569. The reversal of 426350565 is 565053624.

It is a happy number.

426350565 is a `hidden beast` number, since 42 + 6 + 3 + 50 + 565 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 174398436 + 251952129 = 13206^2 + 15873^2 .

It is not a de Polignac number, because 426350565 - 2⁴ = 426350549 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426350569) 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 23 ways as a sum of consecutive naturals, for example, 277896 + ... + 279425.

It is an arithmetic number, because the mean of its divisors is an integer number (32603337).

Almost surely, 2^426350565 is an apocalyptic number.

426350565 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426350565 is a deficient number, since it is larger than the sum of its proper divisors (356129523).

426350565 is a wasteful number, since it uses less digits than its factorization.

426350565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557349 (or 557346 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 426350565 is about 20648.2581589828. The cubic root of 426350565 is about 752.6428627628.

The spelling of 426350565 in words is "four hundred twenty-six million, three hundred fifty thousand, five hundred sixty-five".