30108393 has 36 divisors (see below), whose sum is σ = 51395760. Its totient is φ = 16931376.

The previous prime is 30108383. The next prime is 30108413. The reversal of 30108393 is 39380103.

It is not a de Polignac number, because 30108393 - 2⁶ = 30108329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30108383) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 29038 + ... + 30056.

It is an arithmetic number, because the mean of its divisors is an integer number (1427660).

Almost surely, 2^30108393 is an apocalyptic number.

It is an amenable number.

30108393 is a deficient number, since it is larger than the sum of its proper divisors (21287367).

30108393 is a wasteful number, since it uses less digits than its factorization.

30108393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30108393 is about 5487.1115352251. Note that the first 3 decimals coincide. The cubic root of 30108393 is about 311.0970255197.

Adding to 30108393 its reverse (39380103), we get a palindrome (69488496).

The spelling of 30108393 in words is "thirty million, one hundred eight thousand, three hundred ninety-three".