305430034 has 48 divisors (see below), whose sum is σ = 578151000. Its totient is φ = 119943936.

The previous prime is 305430023. The next prime is 305430049. The reversal of 305430034 is 430034503.

It can be written as a sum of positive squares in 4 ways, for example, as 238239225 + 67190809 = 15435^2 + 8197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305429987 and 305430014.

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 23 ways as a sum of consecutive naturals, for example, 189022 + ... + 190630.

Almost surely, 2^305430034 is an apocalyptic number.

305430034 is a deficient number, since it is larger than the sum of its proper divisors (272720966).

305430034 is a wasteful number, since it uses less digits than its factorization.

305430034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 305430034 is about 17476.5566974733. The cubic root of 305430034 is about 673.4477612170.

Adding to 305430034 its reverse (430034503), we get a palindrome (735464537).

The spelling of 305430034 in words is "three hundred five million, four hundred thirty thousand, thirty-four".