198318064 has 40 divisors (see below), whose sum is σ = 449356160. Its totient is φ = 83014848.

The previous prime is 198318061. The next prime is 198318083. The reversal of 198318064 is 460813891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198318061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15774 + ... + 25405.

It is an arithmetic number, because the mean of its divisors is an integer number (11233904).

Almost surely, 2^198318064 is an apocalyptic number.

198318064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198318064 is an abundant number, since it is smaller than the sum of its proper divisors (251038096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198318064 is a wasteful number, since it uses less digits than its factorization.

198318064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41237 (or 41231 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 198318064 is about 14082.5446564177. The cubic root of 198318064 is about 583.1595937190.

The spelling of 198318064 in words is "one hundred ninety-eight million, three hundred eighteen thousand, sixty-four".