306664146 has 24 divisors (see below), whose sum is σ = 670323420. Its totient is φ = 101316096.

The previous prime is 306664117. The next prime is 306664147. The reversal of 306664146 is 641466603.

It can be written as a sum of positive squares in 2 ways, for example, as 306425025 + 239121 = 17505^2 + 489^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 306664146.

It is not an unprimeable number, because it can be changed into a prime (306664147) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 73351 + ... + 77418.

Almost surely, 2^306664146 is an apocalyptic number.

306664146 is an abundant number, since it is smaller than the sum of its proper divisors (363659274).

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

306664146 is a wasteful number, since it uses less digits than its factorization.

306664146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150890 (or 150887 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 306664146 is about 17511.8287451654. The cubic root of 306664146 is about 674.3535803251.

The spelling of 306664146 in words is "three hundred six million, six hundred sixty-four thousand, one hundred forty-six".