422142 has 48 divisors (see below), whose sum is σ = 1061760. Its totient is φ = 109296.

The previous prime is 422141. The next prime is 422183. The reversal of 422142 is 241224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18343 + ... + 18365.

It is an arithmetic number, because the mean of its divisors is an integer number (22120).

2⁴²²¹⁴² is an apocalyptic number.

422142 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 422142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530880).

422142 is an abundant number, since it is smaller than the sum of its proper divisors (639618).

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

422142 is a wasteful number, since it uses less digits than its factorization.

422142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 54 counting only the distinct ones).

The product of its digits is 128, while the sum is 15.

The square root of 422142 is about 649.7245570240. The cubic root of 422142 is about 75.0158188855.

Adding to 422142 its reverse (241224), we get a palindrome (663366).

The spelling of 422142 in words is "four hundred twenty-two thousand, one hundred forty-two", and thus it is an iban number.