30638085 has 16 divisors (see below), whose sum is σ = 49158144. Its totient is φ = 16294592.

The previous prime is 30638077. The next prime is 30638087. The reversal of 30638085 is 58083603.

It is a cyclic number.

It is not a de Polignac number, because 30638085 - 2³ = 30638077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30638087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079 + ... + 8411.

It is an arithmetic number, because the mean of its divisors is an integer number (3072384).

Almost surely, 2^30638085 is an apocalyptic number.

It is an amenable number.

30638085 is a deficient number, since it is larger than the sum of its proper divisors (18520059).

30638085 is a wasteful number, since it uses less digits than its factorization.

30638085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 30638085 is about 5535.1680191300. The cubic root of 30638085 is about 312.9107899020.

The spelling of 30638085 in words is "thirty million, six hundred thirty-eight thousand, eighty-five".