198840320 has 208 divisors, whose sum is σ = 581888640. Its totient is φ = 63700992.

The previous prime is 198840319. The next prime is 198840349. The reversal of 198840320 is 23048891.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2723804 + ... + 2723876.

Almost surely, 2^198840320 is an apocalyptic number.

198840320 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 198840320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290944320).

198840320 is an abundant number, since it is smaller than the sum of its proper divisors (383048320).

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

198840320 is an equidigital number, since it uses as much as digits as its factorization.

198840320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 198840320 is about 14101.0751363150. The cubic root of 198840320 is about 583.6710476210.

The spelling of 198840320 in words is "one hundred ninety-eight million, eight hundred forty thousand, three hundred twenty".