30538068 has 24 divisors (see below), whose sum is σ = 77733600. Its totient is φ = 9253920.

The previous prime is 30538063. The next prime is 30538093. The reversal of 30538068 is 86083503.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30538063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115543 + ... + 115806.

It is an arithmetic number, because the mean of its divisors is an integer number (3238900).

Almost surely, 2^30538068 is an apocalyptic number.

It is an amenable number.

30538068 is an abundant number, since it is smaller than the sum of its proper divisors (47195532).

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

30538068 is a wasteful number, since it uses less digits than its factorization.

30538068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231367 (or 231365 counting only the distinct ones).

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

The square root of 30538068 is about 5526.1259486190. The cubic root of 30538068 is about 312.5699231266.

The spelling of 30538068 in words is "thirty million, five hundred thirty-eight thousand, sixty-eight".