422768 has 10 divisors (see below), whose sum is σ = 819144. Its totient is φ = 211376.

The previous prime is 422761. The next prime is 422789. The reversal of 422768 is 867224.

422768 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 422768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422761) by changing a digit.

422768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13196 + ... + 13227.

2⁴²²⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

422768 is a deficient number, since it is larger than the sum of its proper divisors (396376).

422768 is a wasteful number, since it uses less digits than its factorization.

422768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26431 (or 26425 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 422768 is about 650.2061211647. The cubic root of 422768 is about 75.0528812241.

The spelling of 422768 in words is "four hundred twenty-two thousand, seven hundred sixty-eight".