198396476208 has 240 divisors, whose sum is σ = 639071596800. Its totient is φ = 56282688000.

The previous prime is 198396476207. The next prime is 198396476237. The reversal of 198396476208 is 802674693891.

It is a super-2 number, since 2×198396476208² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (198396476207) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95888998 + ... + 95891066.

It is an arithmetic number, because the mean of its divisors is an integer number (2662798320).

Almost surely, 2^198396476208 is an apocalyptic number.

198396476208 is a gapful number since it is divisible by the number (18) 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 198396476208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319535798400).

198396476208 is an abundant number, since it is smaller than the sum of its proper divisors (440675120592).

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

198396476208 is a wasteful number, since it uses less digits than its factorization.

198396476208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2720 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 198396476208 in words is "one hundred ninety-eight billion, three hundred ninety-six million, four hundred seventy-six thousand, two hundred eight".