20395198 has 8 divisors (see below), whose sum is σ = 30727080. Its totient is φ = 10152840.

The previous prime is 20395187. The next prime is 20395217. The reversal of 20395198 is 89159302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21808 + ... + 22723.

It is an arithmetic number, because the mean of its divisors is an integer number (3840885).

Almost surely, 2^20395198 is an apocalyptic number.

20395198 is a deficient number, since it is larger than the sum of its proper divisors (10331882).

20395198 is a wasteful number, since it uses less digits than its factorization.

20395198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44762.

The product of its (nonzero) digits is 19440, while the sum is 37.

The square root of 20395198 is about 4516.1042946327. The cubic root of 20395198 is about 273.2180004532.

The spelling of 20395198 in words is "twenty million, three hundred ninety-five thousand, one hundred ninety-eight".