305730034 has 4 divisors (see below), whose sum is σ = 458595054. Its totient is φ = 152865016.

The previous prime is 305730011. The next prime is 305730037. The reversal of 305730034 is 430037503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 430037503 = 7 ⋅61433929.

It can be written as a sum of positive squares in only one way, i.e., 297045225 + 8684809 = 17235^2 + 2947^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305729990 and 305730008.

It is not an unprimeable number, because it can be changed into a prime (305730037) 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 as a sum of consecutive naturals, namely, 76432507 + ... + 76432510.

Almost surely, 2^305730034 is an apocalyptic number.

305730034 is a deficient number, since it is larger than the sum of its proper divisors (152865020).

305730034 is a wasteful number, since it uses less digits than its factorization.

305730034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152865019.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 305730034 is about 17485.1375173317. The cubic root of 305730034 is about 673.6681807287.

Adding to 305730034 its reverse (430037503), we get a palindrome (735767537).

The spelling of 305730034 in words is "three hundred five million, seven hundred thirty thousand, thirty-four".