306966645 has 16 divisors (see below), whose sum is σ = 545718720. Its totient is φ = 163715472.

The previous prime is 306966643. The next prime is 306966659. The reversal of 306966645 is 546669603.

It is not a de Polignac number, because 306966645 - 2¹ = 306966643 is a prime.

It is a super-2 number, since 2×306966645² = 188457042285112050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 306966645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306966643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136779 + ... + 1137048.

It is an arithmetic number, because the mean of its divisors is an integer number (34107420).

Almost surely, 2^306966645 is an apocalyptic number.

It is an amenable number.

306966645 is a deficient number, since it is larger than the sum of its proper divisors (238752075).

306966645 is a wasteful number, since it uses less digits than its factorization.

306966645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273841 (or 2273835 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 306966645 is about 17520.4636068798. The cubic root of 306966645 is about 674.5752389371.

The spelling of 306966645 in words is "three hundred six million, nine hundred sixty-six thousand, six hundred forty-five".