30673212 has 12 divisors (see below), whose sum is σ = 71570856. Its totient is φ = 10224400.

The previous prime is 30673211. The next prime is 30673241. The reversal of 30673212 is 21237603.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30673211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278039 + ... + 1278062.

It is an arithmetic number, because the mean of its divisors is an integer number (5964238).

Almost surely, 2^30673212 is an apocalyptic number.

It is an amenable number.

30673212 is an abundant number, since it is smaller than the sum of its proper divisors (40897644).

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

30673212 is a wasteful number, since it uses less digits than its factorization.

30673212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556108 (or 2556106 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 30673212 is about 5538.3401845679. The cubic root of 30673212 is about 313.0303297852.

The spelling of 30673212 in words is "thirty million, six hundred seventy-three thousand, two hundred twelve".