30894012 has 18 divisors (see below), whose sum is σ = 78093288. Its totient is φ = 10297992.

The previous prime is 30893963. The next prime is 30894029. The reversal of 30894012 is 21049803.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×30894012² = 1908879954912288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 429048 + ... + 429119.

It is an arithmetic number, because the mean of its divisors is an integer number (4338516).

Almost surely, 2^30894012 is an apocalyptic number.

It is an amenable number.

30894012 is an abundant number, since it is smaller than the sum of its proper divisors (47199276).

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

30894012 is a wasteful number, since it uses less digits than its factorization.

30894012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858177 (or 858172 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30894012 is about 5558.2382100806. The cubic root of 30894012 is about 313.7796471511.

The spelling of 30894012 in words is "thirty million, eight hundred ninety-four thousand, twelve".