30085072 has 20 divisors (see below), whose sum is σ = 58870116. Its totient is φ = 14892800.

The previous prime is 30085051. The next prime is 30085129. The reversal of 30085072 is 27058003.

It can be written as a sum of positive squares in 2 ways, for example, as 29116816 + 968256 = 5396^2 + 984^2 .

It is a super-2 number, since 2×30085072² = 1810223114490368, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7693 + ... + 10924.

Almost surely, 2^30085072 is an apocalyptic number.

It is an amenable number.

30085072 is a deficient number, since it is larger than the sum of its proper divisors (28785044).

30085072 is a wasteful number, since it uses less digits than its factorization.

30085072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18726 (or 18720 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 30085072 is about 5484.9860528537. The cubic root of 30085072 is about 311.0166828311.

The spelling of 30085072 in words is "thirty million, eighty-five thousand, seventy-two".