422718 has 16 divisors (see below), whose sum is σ = 864000. Its totient is φ = 137816.

The previous prime is 422711. The next prime is 422749. The reversal of 422718 is 817224.

422718 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (54000).

2⁴²²⁷¹⁸ is an apocalyptic number.

422718 is an abundant number, since it is smaller than the sum of its proper divisors (441282).

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

422718 is a wasteful number, since it uses less digits than its factorization.

422718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1551.

The product of its digits is 896, while the sum is 24.

The square root of 422718 is about 650.1676706820. The cubic root of 422718 is about 75.0499223183.

It can be divided in two parts, 4 and 22718, that added together give a palindrome (22722).

The spelling of 422718 in words is "four hundred twenty-two thousand, seven hundred eighteen".