197998192 has 80 divisors (see below), whose sum is σ = 452853952. Its totient is φ = 82114560.

The previous prime is 197998189. The next prime is 197998217. The reversal of 197998192 is 291899791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498538 + ... + 498934.

Almost surely, 2^197998192 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 197998192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226426976).

197998192 is an abundant number, since it is smaller than the sum of its proper divisors (254855760).

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

197998192 is a wasteful number, since it uses less digits than its factorization.

197998192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 540 counting only the distinct ones).

The product of its digits is 734832, while the sum is 55.

The square root of 197998192 is about 14071.1830348411. The cubic root of 197998192 is about 582.8458942649.

The spelling of 197998192 in words is "one hundred ninety-seven million, nine hundred ninety-eight thousand, one hundred ninety-two".