198670320 has 400 divisors, whose sum is σ = 760522752. Its totient is φ = 47900160.

The previous prime is 198670319. The next prime is 198670331. The reversal of 198670320 is 23076891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 4620219 + ... + 4620261.

Almost surely, 2^198670320 is an apocalyptic number.

198670320 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 198670320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380261376).

198670320 is an abundant number, since it is smaller than the sum of its proper divisors (561852432).

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

198670320 is a wasteful number, since it uses less digits than its factorization.

198670320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 198670320 is about 14095.0459382011. The cubic root of 198670320 is about 583.5046622370.

The spelling of 198670320 in words is "one hundred ninety-eight million, six hundred seventy thousand, three hundred twenty".