30005198 has 12 divisors (see below), whose sum is σ = 46615920. Its totient is φ = 14484456.

The previous prime is 30005197. The next prime is 30005231. The reversal of 30005198 is 89150003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30005191) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7238 + ... + 10601.

It is an arithmetic number, because the mean of its divisors is an integer number (3884660).

Almost surely, 2^30005198 is an apocalyptic number.

30005198 is a deficient number, since it is larger than the sum of its proper divisors (16610722).

30005198 is a wasteful number, since it uses less digits than its factorization.

30005198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17899 (or 17870 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 30005198 is about 5477.7000648082. The cubic root of 30005198 is about 310.7411955530.

It can be divided in two parts, 30005 and 198, that added together give a palindrome (30203).

The spelling of 30005198 in words is "thirty million, five thousand, one hundred ninety-eight".