198923208 has 32 divisors (see below), whose sum is σ = 542518560. Its totient is φ = 60279680.

The previous prime is 198923191. The next prime is 198923213. The reversal of 198923208 is 802329891.

It is a super-2 number, since 2×198923208² = 79140885362022528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198923208.

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, 376485 + ... + 377012.

It is an arithmetic number, because the mean of its divisors is an integer number (16953705).

Almost surely, 2^198923208 is an apocalyptic number.

It is an amenable number.

198923208 is an abundant number, since it is smaller than the sum of its proper divisors (343595352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198923208 is a wasteful number, since it uses less digits than its factorization.

198923208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753517 (or 753513 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198923208 is about 14104.0138967600. The cubic root of 198923208 is about 583.7521388284.

The spelling of 198923208 in words is "one hundred ninety-eight million, nine hundred twenty-three thousand, two hundred eight".