622665636 has 24 divisors (see below), whose sum is σ = 1462641600. Its totient is φ = 206161632.

The previous prime is 622665623. The next prime is 622665643. The reversal of 622665636 is 636566226.

622665636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172336 + ... + 175911.

It is an arithmetic number, because the mean of its divisors is an integer number (60943400).

Almost surely, 2^622665636 is an apocalyptic number.

It is an amenable number.

622665636 is an abundant number, since it is smaller than the sum of its proper divisors (839975964).

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

622665636 is a wasteful number, since it uses less digits than its factorization.

622665636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348403 (or 348401 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The square root of 622665636 is about 24953.2690443557. The cubic root of 622665636 is about 853.9221903305.

The spelling of 622665636 in words is "six hundred twenty-two million, six hundred sixty-five thousand, six hundred thirty-six".