30799198 has 4 divisors (see below), whose sum is σ = 46198800. Its totient is φ = 15399598.

The previous prime is 30799187. The next prime is 30799229. The reversal of 30799198 is 89199703.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7699798 + ... + 7699801.

It is an arithmetic number, because the mean of its divisors is an integer number (11549700).

Almost surely, 2^30799198 is an apocalyptic number.

30799198 is a deficient number, since it is larger than the sum of its proper divisors (15399602).

30799198 is a wasteful number, since it uses less digits than its factorization.

30799198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15399601.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 30799198 is about 5549.7025145498. The cubic root of 30799198 is about 313.4583206912.

The spelling of 30799198 in words is "thirty million, seven hundred ninety-nine thousand, one hundred ninety-eight".