305545012 has 12 divisors (see below), whose sum is σ = 566157060. Its totient is φ = 143785856.

The previous prime is 305545007. The next prime is 305545033. The reversal of 305545012 is 210545503.

It can be written as a sum of positive squares in 2 ways, for example, as 271392676 + 34152336 = 16474^2 + 5844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2246587 + ... + 2246722.

It is an arithmetic number, because the mean of its divisors is an integer number (47179755).

Almost surely, 2^305545012 is an apocalyptic number.

It is an amenable number.

305545012 is a deficient number, since it is larger than the sum of its proper divisors (260612048).

305545012 is a wasteful number, since it uses less digits than its factorization.

305545012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4493330 (or 4493328 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 305545012 is about 17479.8458803274. The cubic root of 305545012 is about 673.5322562500.

The spelling of 305545012 in words is "three hundred five million, five hundred forty-five thousand, twelve".