198770132 has 24 divisors (see below), whose sum is σ = 388729152. Its totient is φ = 88145600.

The previous prime is 198770129. The next prime is 198770141. The reversal of 198770132 is 231077891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53288 + ... + 56895.

It is an arithmetic number, because the mean of its divisors is an integer number (16197048).

Almost surely, 2^198770132 is an apocalyptic number.

It is an amenable number.

198770132 is a deficient number, since it is larger than the sum of its proper divisors (189959020).

198770132 is a wasteful number, since it uses less digits than its factorization.

198770132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110239 (or 110237 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 198770132 is about 14098.5861702513. The cubic root of 198770132 is about 583.6023634885.

The spelling of 198770132 in words is "one hundred ninety-eight million, seven hundred seventy thousand, one hundred thirty-two".