30198986 has 8 divisors (see below), whose sum is σ = 46352064. Its totient is φ = 14748300.

The previous prime is 30198983. The next prime is 30198989. The reversal of 30198986 is 68989103.

It is an interprime number because it is at equal distance from previous prime (30198983) and next prime (30198989).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30198983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175490 + ... + 175661.

It is an arithmetic number, because the mean of its divisors is an integer number (5794008).

Almost surely, 2^30198986 is an apocalyptic number.

30198986 is a deficient number, since it is larger than the sum of its proper divisors (16153078).

30198986 is a wasteful number, since it uses less digits than its factorization.

30198986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351196.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 30198986 is about 5495.3604067431. The cubic root of 30198986 is about 311.4087325489.

The spelling of 30198986 in words is "thirty million, one hundred ninety-eight thousand, nine hundred eighty-six".