305500312 has 32 divisors (see below), whose sum is σ = 617929200. Its totient is φ = 140759424.

The previous prime is 305500309. The next prime is 305500313. The reversal of 305500312 is 213005503.

305500312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 305500312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305500313) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68239 + ... + 72577.

Almost surely, 2^305500312 is an apocalyptic number.

It is an amenable number.

305500312 is an abundant number, since it is smaller than the sum of its proper divisors (312428888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

305500312 is a wasteful number, since it uses less digits than its factorization.

305500312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5031 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 305500312 is about 17478.5672181675. The cubic root of 305500312 is about 673.4994096328.

Adding to 305500312 its reverse (213005503), we get a palindrome (518505815).

The spelling of 305500312 in words is "three hundred five million, five hundred thousand, three hundred twelve".