198520732 has 12 divisors (see below), whose sum is σ = 352597000. Its totient is φ = 97778736.

The previous prime is 198520727. The next prime is 198520733. The reversal of 198520732 is 237025891.

It is a junction number, because it is equal to n+sod(n) for n = 198520691 and 198520700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198520733) 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 3 ways as a sum of consecutive naturals, for example, 370107 + ... + 370642.

Almost surely, 2^198520732 is an apocalyptic number.

It is an amenable number.

198520732 is a deficient number, since it is larger than the sum of its proper divisors (154076268).

198520732 is a wasteful number, since it uses less digits than its factorization.

198520732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740820 (or 740818 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 198520732 is about 14089.7385355442. The cubic root of 198520732 is about 583.3581763207.

The spelling of 198520732 in words is "one hundred ninety-eight million, five hundred twenty thousand, seven hundred thirty-two".