30547012 has 12 divisors (see below), whose sum is σ = 53738496. Its totient is φ = 15193160.

The previous prime is 30547007. The next prime is 30547043. The reversal of 30547012 is 21074503.

It is an alternating number because its digits alternate between odd and even.

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, 19228 + ... + 20755.

It is an arithmetic number, because the mean of its divisors is an integer number (4478208).

Almost surely, 2^30547012 is an apocalyptic number.

It is an amenable number.

30547012 is a deficient number, since it is larger than the sum of its proper divisors (23191484).

30547012 is a wasteful number, since it uses less digits than its factorization.

30547012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40178 (or 40176 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 30547012 is about 5526.9351362215. The cubic root of 30547012 is about 312.6004353440.

The spelling of 30547012 in words is "thirty million, five hundred forty-seven thousand, twelve".