305020612 has 24 divisors (see below), whose sum is σ = 575363096. Its totient is φ = 140652288.

The previous prime is 305020609. The next prime is 305020621. The reversal of 305020612 is 216020503.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15476356 + 289544256 = 3934^2 + 17016^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 305020612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81208 + ... + 84880.

Almost surely, 2^305020612 is an apocalyptic number.

It is an amenable number.

305020612 is a deficient number, since it is larger than the sum of its proper divisors (270342484).

305020612 is a wasteful number, since it uses less digits than its factorization.

305020612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5287 (or 5285 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 305020612 is about 17464.8393064465. The cubic root of 305020612 is about 673.1467128686.

The spelling of 305020612 in words is "three hundred five million, twenty thousand, six hundred twelve".