198140392 has 16 divisors (see below), whose sum is σ = 371663460. Its totient is φ = 99030144.

The previous prime is 198140381. The next prime is 198140399. The reversal of 198140392 is 293041891.

It can be written as a sum of positive squares in 2 ways, for example, as 171452836 + 26687556 = 13094^2 + 5166^2 .

It is a super-3 number, since 3×198140392³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (198140399) 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, 32878 + ... + 38434.

Almost surely, 2^198140392 is an apocalyptic number.

It is an amenable number.

198140392 is a deficient number, since it is larger than the sum of its proper divisors (173523068).

198140392 is a wasteful number, since it uses less digits than its factorization.

198140392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10020 (or 10016 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 198140392 is about 14076.2350079842. The cubic root of 198140392 is about 582.9853919238.

The spelling of 198140392 in words is "one hundred ninety-eight million, one hundred forty thousand, three hundred ninety-two".