30206812 has 12 divisors (see below), whose sum is σ = 54091576. Its totient is φ = 14752080.

The previous prime is 30206809. The next prime is 30206831. The reversal of 30206812 is 21860203.

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, 87639 + ... + 87982.

Almost surely, 2^30206812 is an apocalyptic number.

It is an amenable number.

30206812 is a deficient number, since it is larger than the sum of its proper divisors (23884764).

30206812 is a wasteful number, since it uses less digits than its factorization.

30206812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175668 (or 175666 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30206812 is about 5496.0724158257. The cubic root of 30206812 is about 311.4356305188.

The spelling of 30206812 in words is "thirty million, two hundred six thousand, eight hundred twelve".