306871212 has 12 divisors (see below), whose sum is σ = 716032856. Its totient is φ = 102290400.

The previous prime is 306871211. The next prime is 306871231. The reversal of 306871212 is 212178603.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 306871212.

It is not an unprimeable number, because it can be changed into a prime (306871211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12786289 + ... + 12786312.

Almost surely, 2^306871212 is an apocalyptic number.

It is an amenable number.

306871212 is an abundant number, since it is smaller than the sum of its proper divisors (409161644).

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

306871212 is a wasteful number, since it uses less digits than its factorization.

306871212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25572608 (or 25572606 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 306871212 is about 17517.7399227183. The cubic root of 306871212 is about 674.5053253571.

It can be divided in two parts, 30 and 6871212, that multiplied together give a triangular number (206136360 = T₂₀₃₀₄).

The spelling of 306871212 in words is "three hundred six million, eight hundred seventy-one thousand, two hundred twelve".