306605622 has 16 divisors (see below), whose sum is σ = 645485760. Its totient is φ = 96822792.

The previous prime is 306605597. The next prime is 306605657. The reversal of 306605622 is 226506603.

It is a self number, because there is not a number n which added to its sum of digits gives 306605622.

It is a congruent number.

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, 1344648 + ... + 1344875.

It is an arithmetic number, because the mean of its divisors is an integer number (40342860).

Almost surely, 2^306605622 is an apocalyptic number.

306605622 is an abundant number, since it is smaller than the sum of its proper divisors (338880138).

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

306605622 is a wasteful number, since it uses less digits than its factorization.

306605622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2689547.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 306605622 is about 17510.1576806150. The cubic root of 306605622 is about 674.3106795597.

The spelling of 306605622 in words is "three hundred six million, six hundred five thousand, six hundred twenty-two".