422140 has 12 divisors (see below), whose sum is σ = 886536. Its totient is φ = 168848.

The previous prime is 422137. The next prime is 422141. The reversal of 422140 is 41224.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 422140.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10534 + ... + 10573.

It is an arithmetic number, because the mean of its divisors is an integer number (73878).

2⁴²²¹⁴⁰ is an apocalyptic number.

It is an amenable number.

422140 is an abundant number, since it is smaller than the sum of its proper divisors (464396).

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

422140 is a wasteful number, since it uses less digits than its factorization.

422140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21116 (or 21114 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 422140 is about 649.7230179084. The cubic root of 422140 is about 75.0157004168.

Adding to 422140 its reverse (41224), we get a palindrome (463364).

The spelling of 422140 in words is "four hundred twenty-two thousand, one hundred forty", and thus it is an iban number.