198143496 has 80 divisors (see below), whose sum is σ = 558613440. Its totient is φ = 65616480.

The previous prime is 198143467. The next prime is 198143503. The reversal of 198143496 is 694341891.

198143496 is a `hidden beast` number, since 19 + 8 + 143 + 496 = 666.

It is a super-3 number, since 3×198143496³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 107301 + ... + 109131.

It is an arithmetic number, because the mean of its divisors is an integer number (6982668).

Almost surely, 2^198143496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198143496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279306720).

198143496 is an abundant number, since it is smaller than the sum of its proper divisors (360469944).

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

198143496 is a wasteful number, since it uses less digits than its factorization.

198143496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 2003 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 198143496 is about 14076.3452643078. The cubic root of 198143496 is about 582.9884361915.

The spelling of 198143496 in words is "one hundred ninety-eight million, one hundred forty-three thousand, four hundred ninety-six".