30069845 has 16 divisors (see below), whose sum is σ = 40115712. Its totient is φ = 21487680.

The previous prime is 30069841. The next prime is 30069869. The reversal of 30069845 is 54896003.

It is not a de Polignac number, because 30069845 - 2² = 30069841 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30069841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5447 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (2507232).

Almost surely, 2^30069845 is an apocalyptic number.

It is an amenable number.

30069845 is a deficient number, since it is larger than the sum of its proper divisors (10045867).

30069845 is a wasteful number, since it uses less digits than its factorization.

30069845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14972.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 30069845 is about 5483.5978153034. The cubic root of 30069845 is about 310.9642022050.

The spelling of 30069845 in words is "thirty million, sixty-nine thousand, eight hundred forty-five".