198040132 has 12 divisors (see below), whose sum is σ = 355937260. Its totient is φ = 96343776.

The previous prime is 198040091. The next prime is 198040133. The reversal of 198040132 is 231040891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 181279296 + 16760836 = 13464^2 + 4094^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 198040132.

It is not an unprimeable number, because it can be changed into a prime (198040133) 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, 668907 + ... + 669202.

Almost surely, 2^198040132 is an apocalyptic number.

It is an amenable number.

198040132 is a deficient number, since it is larger than the sum of its proper divisors (157897128).

198040132 is a wasteful number, since it uses less digits than its factorization.

198040132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338150 (or 1338148 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 198040132 is about 14072.6732357431. The cubic root of 198040132 is about 582.8870441879.

The spelling of 198040132 in words is "one hundred ninety-eight million, forty thousand, one hundred thirty-two".