622216650 has 96 divisors (see below), whose sum is σ = 1689177600. Its totient is φ = 150321600.

The previous prime is 622216627. The next prime is 622216687. The reversal of 622216650 is 56612226.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 723921 + ... + 724779.

It is an arithmetic number, because the mean of its divisors is an integer number (17595600).

Almost surely, 2^622216650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 622216650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844588800).

622216650 is an abundant number, since it is smaller than the sum of its proper divisors (1066960950).

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

622216650 is a wasteful number, since it uses less digits than its factorization.

622216650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1319 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 622216650 is about 24944.2708853155. The cubic root of 622216650 is about 853.7168948632.

Adding to 622216650 its reverse (56612226), we get a palindrome (678828876).

The spelling of 622216650 in words is "six hundred twenty-two million, two hundred sixteen thousand, six hundred fifty".