30974845 has 16 divisors (see below), whose sum is σ = 42684480. Its totient is φ = 21340800.

The previous prime is 30974773. The next prime is 30974851. The reversal of 30974845 is 54847903.

It is not a de Polignac number, because 30974845 - 2⁷ = 30974717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30974798 and 30974807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13776 + ... + 15865.

It is an arithmetic number, because the mean of its divisors is an integer number (2667780).

Almost surely, 2^30974845 is an apocalyptic number.

It is an amenable number.

30974845 is a deficient number, since it is larger than the sum of its proper divisors (11709635).

30974845 is a wasteful number, since it uses less digits than its factorization.

30974845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29676.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 30974845 is about 5565.5049186934. The cubic root of 30974845 is about 314.0530729660.

The spelling of 30974845 in words is "thirty million, nine hundred seventy-four thousand, eight hundred forty-five".