198146894 has 8 divisors (see below), whose sum is σ = 324240408. Its totient is φ = 90066760.

The previous prime is 198146867. The next prime is 198146899. The reversal of 198146894 is 498641891.

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

It is a super-3 number, since 3×198146894³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198146899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4503317 + ... + 4503360.

It is an arithmetic number, because the mean of its divisors is an integer number (40530051).

Almost surely, 2^198146894 is an apocalyptic number.

198146894 is a deficient number, since it is larger than the sum of its proper divisors (126093514).

198146894 is a wasteful number, since it uses less digits than its factorization.

198146894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9006690.

The product of its digits is 497664, while the sum is 50.

The square root of 198146894 is about 14076.4659627337. The cubic root of 198146894 is about 582.9917687652.

The spelling of 198146894 in words is "one hundred ninety-eight million, one hundred forty-six thousand, eight hundred ninety-four".