30503168 has 72 divisors (see below), whose sum is σ = 66372768. Its totient is φ = 13934592.

The previous prime is 30503159. The next prime is 30503197. The reversal of 30503168 is 86130503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187055 + ... + 187217.

It is an arithmetic number, because the mean of its divisors is an integer number (921844).

Almost surely, 2^30503168 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 30503168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33186384).

30503168 is an abundant number, since it is smaller than the sum of its proper divisors (35869600).

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

30503168 is a wasteful number, since it uses less digits than its factorization.

30503168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30503168 is about 5522.9673183896. The cubic root of 30503168 is about 312.4508056962.

The spelling of 30503168 in words is "thirty million, five hundred three thousand, one hundred sixty-eight".