622305306 has 24 divisors (see below), whose sum is σ = 1540946784. Its totient is φ = 177801480.

The previous prime is 622305263. The next prime is 622305311. The reversal of 622305306 is 603503226.

622305306 is a `hidden beast` number, since 622 + 3 + 0 + 5 + 30 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 622305306.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469340 + ... + 2469591.

It is an arithmetic number, because the mean of its divisors is an integer number (64206116).

Almost surely, 2^622305306 is an apocalyptic number.

622305306 is an abundant number, since it is smaller than the sum of its proper divisors (918641478).

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

622305306 is a wasteful number, since it uses less digits than its factorization.

622305306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938946 (or 4938943 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 622305306 is about 24946.0479034255. The cubic root of 622305306 is about 853.7574399748.

The spelling of 622305306 in words is "six hundred twenty-two million, three hundred five thousand, three hundred six".