198444064 has 48 divisors (see below), whose sum is σ = 480852288. Its totient is φ = 78504192.

The previous prime is 198444053. The next prime is 198444067. The reversal of 198444064 is 460444891.

It is not an unprimeable number, because it can be changed into a prime (198444067) 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, 31162 + ... + 36985.

It is an arithmetic number, because the mean of its divisors is an integer number (10017756).

Almost surely, 2^198444064 is an apocalyptic number.

198444064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198444064 is an abundant number, since it is smaller than the sum of its proper divisors (282408224).

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

198444064 is a wasteful number, since it uses less digits than its factorization.

198444064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68177 (or 68169 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 198444064 is about 14087.0175693793. The cubic root of 198444064 is about 583.2830697008.

The spelling of 198444064 in words is "one hundred ninety-eight million, four hundred forty-four thousand, sixty-four".