622424646 has 12 divisors (see below), whose sum is σ = 1348586772. Its totient is φ = 207474876.

The previous prime is 622424563. The next prime is 622424669. The reversal of 622424646 is 646424226.

622424646 is a `hidden beast` number, since 6 + 2 + 2 + 4 + 2 + 4 + 646 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 622424646.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 17289556 + ... + 17289591.

It is an arithmetic number, because the mean of its divisors is an integer number (112382231).

Almost surely, 2^622424646 is an apocalyptic number.

622424646 is an abundant number, since it is smaller than the sum of its proper divisors (726162126).

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

622424646 is a wasteful number, since it uses less digits than its factorization.

622424646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34579155 (or 34579152 counting only the distinct ones).

The product of its digits is 110592, while the sum is 36.

The square root of 622424646 is about 24948.4397508141. The cubic root of 622424646 is about 853.8120117419.

The spelling of 622424646 in words is "six hundred twenty-two million, four hundred twenty-four thousand, six hundred forty-six".