198970472 has 8 divisors (see below), whose sum is σ = 373069650. Its totient is φ = 99485232.

The previous prime is 198970469. The next prime is 198970477. The reversal of 198970472 is 274079891.

It can be written as a sum of positive squares in only one way, i.e., 183494116 + 15476356 = 13546^2 + 3934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (198970477) by changing a digit.

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, 12435647 + ... + 12435662.

Almost surely, 2^198970472 is an apocalyptic number.

It is an amenable number.

198970472 is a deficient number, since it is larger than the sum of its proper divisors (174099178).

198970472 is a wasteful number, since it uses less digits than its factorization.

198970472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24871315 (or 24871311 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 198970472 is about 14105.6893486281. The cubic root of 198970472 is about 583.7983681858.

The spelling of 198970472 in words is "one hundred ninety-eight million, nine hundred seventy thousand, four hundred seventy-two".