30299985 has 24 divisors (see below), whose sum is σ = 52678080. Its totient is φ = 16111392.

The previous prime is 30299957. The next prime is 30299999. The reversal of 30299985 is 58999203.

It is not a de Polignac number, because 30299985 - 2⁵ = 30299953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30299985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18052 + ... + 19658.

It is an arithmetic number, because the mean of its divisors is an integer number (2194920).

Almost surely, 2^30299985 is an apocalyptic number.

It is an amenable number.

30299985 is a deficient number, since it is larger than the sum of its proper divisors (22378095).

30299985 is a wasteful number, since it uses less digits than its factorization.

30299985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 45.

The square root of 30299985 is about 5504.5422152982. The cubic root of 30299985 is about 311.7555098922.

The spelling of 30299985 in words is "thirty million, two hundred ninety-nine thousand, nine hundred eighty-five".