622442020 has 12 divisors (see below), whose sum is σ = 1307128284. Its totient is φ = 248976800.

The previous prime is 622442003. The next prime is 622442089. The reversal of 622442020 is 20244226.

It can be written as a sum of positive squares in 2 ways, for example, as 315701824 + 306740196 = 17768^2 + 17514^2 .

It is a junction number, because it is equal to n+sod(n) for n = 622441982 and 622442000.

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 3 ways as a sum of consecutive naturals, for example, 15561031 + ... + 15561070.

It is an arithmetic number, because the mean of its divisors is an integer number (108927357).

Almost surely, 2^622442020 is an apocalyptic number.

It is an amenable number.

622442020 is an abundant number, since it is smaller than the sum of its proper divisors (684686264).

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

622442020 is a wasteful number, since it uses less digits than its factorization.

622442020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31122110 (or 31122108 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 622442020 is about 24948.7879465115. The cubic root of 622442020 is about 853.8199559388.

Adding to 622442020 its reverse (20244226), we get a palindrome (642686246).

The spelling of 622442020 in words is "six hundred twenty-two million, four hundred forty-two thousand, twenty".