622144422 has 64 divisors (see below), whose sum is σ = 1417590720. Its totient is φ = 202176000.

The previous prime is 622144421. The next prime is 622144433. The reversal of 622144422 is 224441226.

622144422 is a `hidden beast` number, since 6 + 2 + 214 + 442 + 2 = 666.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622144421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517422 + ... + 518622.

It is an arithmetic number, because the mean of its divisors is an integer number (22149855).

Almost surely, 2^622144422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622144422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (708795360).

622144422 is an abundant number, since it is smaller than the sum of its proper divisors (795446298).

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

622144422 is a wasteful number, since it uses less digits than its factorization.

622144422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446 (or 1440 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 622144422 is about 24942.8230559414. The cubic root of 622144422 is about 853.6838599335.

Adding to 622144422 its reverse (224441226), we get a palindrome (846585648).

The spelling of 622144422 in words is "six hundred twenty-two million, one hundred forty-four thousand, four hundred twenty-two".