29985185 has 8 divisors (see below), whose sum is σ = 36184320. Its totient is φ = 23853424.

The previous prime is 29985181. The next prime is 29985187. The reversal of 29985185 is 58158992.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29985185 - 2² = 29985181 is a prime.

It is a super-2 number, since 2×29985185² = 1798222638968450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29985181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15857 + ... + 17646.

It is an arithmetic number, because the mean of its divisors is an integer number (4523040).

Almost surely, 2^29985185 is an apocalyptic number.

It is an amenable number.

29985185 is a deficient number, since it is larger than the sum of its proper divisors (6199135).

29985185 is a wasteful number, since it uses less digits than its factorization.

29985185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33687.

The product of its digits is 259200, while the sum is 47.

The square root of 29985185 is about 5475.8729897615. The cubic root of 29985185 is about 310.6720936739.

The spelling of 29985185 in words is "twenty-nine million, nine hundred eighty-five thousand, one hundred eighty-five".