426438366 has 16 divisors (see below), whose sum is σ = 863673600. Its totient is φ = 140346648.

The previous prime is 426438361. The next prime is 426438391. The reversal of 426438366 is 663834624.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426438361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449356 + ... + 450303.

It is an arithmetic number, because the mean of its divisors is an integer number (53979600).

Almost surely, 2^426438366 is an apocalyptic number.

426438366 is an abundant number, since it is smaller than the sum of its proper divisors (437235234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426438366 is a wasteful number, since it uses less digits than its factorization.

426438366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899743.

The product of its digits is 497664, while the sum is 42.

The square root of 426438366 is about 20650.3841610756. The cubic root of 426438366 is about 752.6945246781.

The spelling of 426438366 in words is "four hundred twenty-six million, four hundred thirty-eight thousand, three hundred sixty-six".