198433772 has 12 divisors (see below), whose sum is σ = 347418456. Its totient is φ = 99171360.

The previous prime is 198433771. The next prime is 198433787. The reversal of 198433772 is 277334891.

It is not an unprimeable number, because it can be changed into a prime (198433771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398 + ... + 19925.

It is an arithmetic number, because the mean of its divisors is an integer number (28951538).

Almost surely, 2^198433772 is an apocalyptic number.

It is an amenable number.

198433772 is a deficient number, since it is larger than the sum of its proper divisors (148984684).

198433772 is a wasteful number, since it uses less digits than its factorization.

198433772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22768 (or 22766 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 198433772 is about 14086.6522637566. The cubic root of 198433772 is about 583.2729858297.

The spelling of 198433772 in words is "one hundred ninety-eight million, four hundred thirty-three thousand, seven hundred seventy-two".