198419 has 4 divisors (see below), whose sum is σ = 213696. Its totient is φ = 183144.

The previous prime is 198413. The next prime is 198427. The reversal of 198419 is 914891.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 198419 - 2¹² = 194323 is a prime.

It is a super-2 number, since 2×198419² = 78740199122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7619 + ... + 7644.

It is an arithmetic number, because the mean of its divisors is an integer number (53424).

2¹⁹⁸⁴¹⁹ is an apocalyptic number.

198419 is a deficient number, since it is larger than the sum of its proper divisors (15277).

198419 is a wasteful number, since it uses less digits than its factorization.

198419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276.

The product of its digits is 2592, while the sum is 32.

The square root of 198419 is about 445.4424766454. The cubic root of 198419 is about 58.3258511945.

The spelling of 198419 in words is "one hundred ninety-eight thousand, four hundred nineteen".