30855168 has 156 divisors (see below), whose sum is σ = 95408768. Its totient is φ = 9953280.

The previous prime is 30855161. The next prime is 30855173. The reversal of 30855168 is 86155803.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30855161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995313 + ... + 995343.

Almost surely, 2^30855168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30855168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47704384).

30855168 is an abundant number, since it is smaller than the sum of its proper divisors (64553600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30855168 is an frugal number, since it uses more digits than its factorization.

30855168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 30855168 is about 5554.7428383319. The cubic root of 30855168 is about 313.6480837002.

The spelling of 30855168 in words is "thirty million, eight hundred fifty-five thousand, one hundred sixty-eight".