305768012 has 24 divisors (see below), whose sum is σ = 597317952. Its totient is φ = 135752400.

The previous prime is 305767993. The next prime is 305768081. The reversal of 305768012 is 210867503.

It is a happy number.

It is a super-3 number, since 3×305768012³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 305768012.

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 7 ways as a sum of consecutive naturals, for example, 78914 + ... + 82697.

It is an arithmetic number, because the mean of its divisors is an integer number (24888248).

Almost surely, 2^305768012 is an apocalyptic number.

It is an amenable number.

305768012 is a deficient number, since it is larger than the sum of its proper divisors (291549940).

305768012 is a wasteful number, since it uses less digits than its factorization.

305768012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161669 (or 161667 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 305768012 is about 17486.2234916519. The cubic root of 305768012 is about 673.6960740856.

The spelling of 305768012 in words is "three hundred five million, seven hundred sixty-eight thousand, twelve".