422140000 has 60 divisors (see below), whose sum is σ = 1038576924. Its totient is φ = 168848000.

The previous prime is 422139997. The next prime is 422140003. The reversal of 422140000 is 41224.

It is an interprime number because it is at equal distance from previous prime (422139997) and next prime (422140003).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422140003) 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 9 ways as a sum of consecutive naturals, for example, 9447 + ... + 30553.

Almost surely, 2^422140000 is an apocalyptic number.

422140000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422140000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519288462).

422140000 is an abundant number, since it is smaller than the sum of its proper divisors (616436924).

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

422140000 is an equidigital number, since it uses as much as digits as its factorization.

422140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21137 (or 21114 counting only the distinct ones).

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

The square root of 422140000 is about 20546.0458482892. The cubic root of 422140000 is about 750.1570041677.

Adding to 422140000 its reverse (41224), we get a palindrome (422181224).

The spelling of 422140000 in words is "four hundred twenty-two million, one hundred forty thousand".