422144142 has 48 divisors (see below), whose sum is σ = 977335680. Its totient is φ = 119077776.

The previous prime is 422144141. The next prime is 422144167. The reversal of 422144142 is 241441224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422144141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288609 + ... + 290067.

It is an arithmetic number, because the mean of its divisors is an integer number (20361160).

Almost surely, 2^422144142 is an apocalyptic number.

422144142 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 422144142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488667840).

422144142 is an abundant number, since it is smaller than the sum of its proper divisors (555191538).

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

422144142 is a wasteful number, since it uses less digits than its factorization.

422144142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1554 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 422144142 is about 20546.1466460259. The cubic root of 422144142 is about 750.1594576508.

Adding to 422144142 its reverse (241441224), we get a palindrome (663585366).

The spelling of 422144142 in words is "four hundred twenty-two million, one hundred forty-four thousand, one hundred forty-two".