198971360 has 144 divisors (see below), whose sum is σ = 561057840. Its totient is φ = 66447360.

The previous prime is 198971359. The next prime is 198971387. The reversal of 198971360 is 63179891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321131 + ... + 321749.

It is an arithmetic number, because the mean of its divisors is an integer number (3896235).

Almost surely, 2^198971360 is an apocalyptic number.

198971360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198971360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280528920).

198971360 is an abundant number, since it is smaller than the sum of its proper divisors (362086480).

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

198971360 is a wasteful number, since it uses less digits than its factorization.

198971360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 198971360 is about 14105.7208252538. The cubic root of 198971360 is about 583.7992366768.

The spelling of 198971360 in words is "one hundred ninety-eight million, nine hundred seventy-one thousand, three hundred sixty".