30115198 has 8 divisors (see below), whose sum is σ = 46630080. Its totient is φ = 14571840.

The previous prime is 30115187. The next prime is 30115199. The reversal of 30115198 is 89151103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30115199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242803 + ... + 242926.

It is an arithmetic number, because the mean of its divisors is an integer number (5828760).

Almost surely, 2^30115198 is an apocalyptic number.

30115198 is a deficient number, since it is larger than the sum of its proper divisors (16514882).

30115198 is a wasteful number, since it uses less digits than its factorization.

30115198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485762.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 30115198 is about 5487.7315896461. The cubic root of 30115198 is about 311.1204614631.

The spelling of 30115198 in words is "thirty million, one hundred fifteen thousand, one hundred ninety-eight".