30107198 has 8 divisors (see below), whose sum is σ = 49266360. Its totient is φ = 13685080.

The previous prime is 30107197. The next prime is 30107201. The reversal of 30107198 is 89170103.

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

It is a super-2 number, since 2×30107198² = 1812886742822408, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30107198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30107197) 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, 684233 + ... + 684276.

It is an arithmetic number, because the mean of its divisors is an integer number (6158295).

Almost surely, 2^30107198 is an apocalyptic number.

30107198 is a deficient number, since it is larger than the sum of its proper divisors (19159162).

30107198 is a wasteful number, since it uses less digits than its factorization.

30107198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368522.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 30107198 is about 5487.0026426092. The cubic root of 30107198 is about 311.0929096589.

Subtracting from 30107198 its sum of digits (29), we obtain a square (30107169 = 5487²).

The spelling of 30107198 in words is "thirty million, one hundred seven thousand, one hundred ninety-eight".