306812434 has 8 divisors (see below), whose sum is σ = 461227068. Its totient is φ = 153070080.

The previous prime is 306812417. The next prime is 306812477. The reversal of 306812434 is 434218603.

It can be written as a sum of positive squares in 2 ways, for example, as 304607209 + 2205225 = 17453^2 + 1485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 306812396 and 306812405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166927 + ... + 168754.

Almost surely, 2^306812434 is an apocalyptic number.

306812434 is a deficient number, since it is larger than the sum of its proper divisors (154414634).

306812434 is a wasteful number, since it uses less digits than its factorization.

306812434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336140.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 306812434 is about 17516.0621716184. The cubic root of 306812434 is about 674.4622577726.

The spelling of 306812434 in words is "three hundred six million, eight hundred twelve thousand, four hundred thirty-four".