426785568 has 96 divisors (see below), whose sum is σ = 1248307200. Its totient is φ = 126562560.

The previous prime is 426785563. The next prime is 426785573. The reversal of 426785568 is 865587624.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (426785563) and next prime (426785573).

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 426785568.

It is not an unprimeable number, because it can be changed into a prime (426785563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45333 + ... + 53931.

It is an arithmetic number, because the mean of its divisors is an integer number (13003200).

Almost surely, 2^426785568 is an apocalyptic number.

426785568 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426785568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624153600).

426785568 is an abundant number, since it is smaller than the sum of its proper divisors (821521632).

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

426785568 is a wasteful number, since it uses less digits than its factorization.

426785568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670 (or 8662 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 51.

The square root of 426785568 is about 20658.7891223082. The cubic root of 426785568 is about 752.8987481339.

The spelling of 426785568 in words is "four hundred twenty-six million, seven hundred eighty-five thousand, five hundred sixty-eight".