198946132 has 48 divisors (see below), whose sum is σ = 441221760. Its totient is φ = 76233600.

The previous prime is 198946091. The next prime is 198946133. The reversal of 198946132 is 231649891.

It is a happy number.

It is a super-2 number, since 2×198946132² = 79159126875522848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198946133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13494 + ... + 24082.

It is an arithmetic number, because the mean of its divisors is an integer number (9192120).

Almost surely, 2^198946132 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 198946132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220610880).

198946132 is an abundant number, since it is smaller than the sum of its proper divisors (242275628).

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

198946132 is a wasteful number, since it uses less digits than its factorization.

198946132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10672 (or 10670 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 198946132 is about 14104.8265498020. The cubic root of 198946132 is about 583.7745619202.

The spelling of 198946132 in words is "one hundred ninety-eight million, nine hundred forty-six thousand, one hundred thirty-two".