422442140 has 24 divisors (see below), whose sum is σ = 895745760. Its totient is φ = 167335488.

The previous prime is 422442133. The next prime is 422442187. The reversal of 422442140 is 41244224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100475 + ... + 104594.

It is an arithmetic number, because the mean of its divisors is an integer number (37322740).

Almost surely, 2^422442140 is an apocalyptic number.

It is an amenable number.

422442140 is an abundant number, since it is smaller than the sum of its proper divisors (473303620).

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

422442140 is a wasteful number, since it uses less digits than its factorization.

422442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205181 (or 205179 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 422442140 is about 20553.3972860936. The cubic root of 422442140 is about 750.3359324730.

Adding to 422442140 its reverse (41244224), we get a palindrome (463686364).

It can be divided in two parts, 4224 and 42140, that added together give a palindrome (46364).

The spelling of 422442140 in words is "four hundred twenty-two million, four hundred forty-two thousand, one hundred forty".