622144263 has 40 divisors (see below), whose sum is σ = 922289328. Its totient is φ = 372892416.

The previous prime is 622144249. The next prime is 622144267. The reversal of 622144263 is 362441226.

It is not a de Polignac number, because 622144263 - 2⁹ = 622143751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 622144263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622144267) 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 39 ways as a sum of consecutive naturals, for example, 4541131 + ... + 4541267.

Almost surely, 2^622144263 is an apocalyptic number.

622144263 is a deficient number, since it is larger than the sum of its proper divisors (300145065).

622144263 is an equidigital number, since it uses as much as digits as its factorization.

622144263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 206 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 622144263 is about 24942.8198686516. The cubic root of 622144263 is about 853.6837872088.

Adding to 622144263 its reverse (362441226), we get a palindrome (984585489).

The spelling of 622144263 in words is "six hundred twenty-two million, one hundred forty-four thousand, two hundred sixty-three".