198638160 has 320 divisors, whose sum is σ = 761856000. Its totient is φ = 42674688.

The previous prime is 198638147. The next prime is 198638201. The reversal of 198638160 is 61836891.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1564017 + ... + 1564143.

It is an arithmetic number, because the mean of its divisors is an integer number (2380800).

Almost surely, 2^198638160 is an apocalyptic number.

198638160 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 198638160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380928000).

198638160 is an abundant number, since it is smaller than the sum of its proper divisors (563217840).

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

198638160 is a wasteful number, since it uses less digits than its factorization.

198638160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198638160 is about 14093.9050656658. The cubic root of 198638160 is about 583.4731753620.

The spelling of 198638160 in words is "one hundred ninety-eight million, six hundred thirty-eight thousand, one hundred sixty".