422022144 has 88 divisors (see below), whose sum is σ = 1191157488. Its totient is φ = 132382720.

The previous prime is 422022121. The next prime is 422022157. The reversal of 422022144 is 441220224.

It is a self number, because there is not a number n which added to its sum of digits gives 422022144.

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, 48184 + ... + 56264.

Almost surely, 2^422022144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422022144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595578744).

422022144 is an abundant number, since it is smaller than the sum of its proper divisors (769135344).

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

422022144 is a wasteful number, since it uses less digits than its factorization.

422022144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8121 (or 8103 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 422022144 is about 20543.1775536308. The cubic root of 422022144 is about 750.0871863088.

Adding to 422022144 its reverse (441220224), we get a palindrome (863242368).

The spelling of 422022144 in words is "four hundred twenty-two million, twenty-two thousand, one hundred forty-four".