198791332 has 6 divisors (see below), whose sum is σ = 347884838. Its totient is φ = 99395664.

The previous prime is 198791309. The next prime is 198791347. The reversal of 198791332 is 233197891.

It can be written as a sum of positive squares in only one way, i.e., 154355776 + 44435556 = 12424^2 + 6666^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24848913 + ... + 24848920.

Almost surely, 2^198791332 is an apocalyptic number.

It is an amenable number.

198791332 is a deficient number, since it is larger than the sum of its proper divisors (149093506).

198791332 is a wasteful number, since it uses less digits than its factorization.

198791332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49697837 (or 49697835 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 198791332 is about 14099.3379986438. The cubic root of 198791332 is about 583.6231109555.

The spelling of 198791332 in words is "one hundred ninety-eight million, seven hundred ninety-one thousand, three hundred thirty-two".