622566838 has 16 divisors (see below), whose sum is σ = 968112000. Its totient is φ = 299908672.

The previous prime is 622566821. The next prime is 622566839. The reversal of 622566838 is 838665226.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622566839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16578 + ... + 38986.

It is an arithmetic number, because the mean of its divisors is an integer number (60507000).

Almost surely, 2^622566838 is an apocalyptic number.

622566838 is a deficient number, since it is larger than the sum of its proper divisors (345545162).

622566838 is a wasteful number, since it uses less digits than its factorization.

622566838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22919.

The product of its digits is 829440, while the sum is 46.

The square root of 622566838 is about 24951.2893053646. The cubic root of 622566838 is about 853.8770241599.

The spelling of 622566838 in words is "six hundred twenty-two million, five hundred sixty-six thousand, eight hundred thirty-eight".