306424945 has 4 divisors (see below), whose sum is σ = 367709940. Its totient is φ = 245139952.

The previous prime is 306424931. The next prime is 306424957. The reversal of 306424945 is 549424603.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62346816 + 244078129 = 7896^2 + 15623^2 .

It is a cyclic number.

It is not a de Polignac number, because 306424945 - 2¹⁷ = 306293873 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 30642490 + ... + 30642499.

It is an arithmetic number, because the mean of its divisors is an integer number (91927485).

Almost surely, 2^306424945 is an apocalyptic number.

It is an amenable number.

306424945 is a deficient number, since it is larger than the sum of its proper divisors (61284995).

306424945 is an equidigital number, since it uses as much as digits as its factorization.

306424945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61284994.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 306424945 is about 17504.9977149384. The cubic root of 306424945 is about 674.1782006128.

The spelling of 306424945 in words is "three hundred six million, four hundred twenty-four thousand, nine hundred forty-five".