198396416 has 20 divisors (see below), whose sum is σ = 396406362. Its totient is φ = 99197952.

The previous prime is 198396403. The next prime is 198396427. The reversal of 198396416 is 614693891.

It can be written as a sum of positive squares in only one way, i.e., 142086400 + 56310016 = 11920^2 + 7504^2 .

It is a super-2 number, since 2×198396416² = 78722275763290112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193235 + ... + 194258.

Almost surely, 2^198396416 is an apocalyptic number.

198396416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

198396416 is a deficient number, since it is larger than the sum of its proper divisors (198009946).

198396416 is an frugal number, since it uses more digits than its factorization.

198396416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387511 (or 387495 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 198396416 is about 14085.3262653018. The cubic root of 198396416 is about 583.2363823274.

The spelling of 198396416 in words is "one hundred ninety-eight million, three hundred ninety-six thousand, four hundred sixteen".