It is a sphenic number, since it is the product of 3 distinct primes.
4198398 is an admirable number.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
Almost surely, 24198398 is an apocalyptic number.
4198398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
4198398 is a wasteful number, since it uses less digits than its factorization.
4198398 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 699738.
The square root of 4198398 is about 2048.9992679354. Note that the first 3 decimals coincide. The cubic root of 4198398 is about 161.3223484010.
The spelling of 4198398 in words is "four million, one hundred ninety-eight thousand, three hundred ninety-eight".