426568 has 16 divisors (see below), whose sum is σ = 812160. Its totient is φ = 210000.

The previous prime is 426563. The next prime is 426583. The reversal of 426568 is 865624.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (426563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (50760).

2⁴²⁶⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

426568 is a deficient number, since it is larger than the sum of its proper divisors (385592).

426568 is a wasteful number, since it uses less digits than its factorization.

426568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 824 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 426568 is about 653.1217344416. The cubic root of 426568 is about 75.2770788076.

The spelling of 426568 in words is "four hundred twenty-six thousand, five hundred sixty-eight".