198412445 has 16 divisors (see below), whose sum is σ = 296846208. Its totient is φ = 123685440.

The previous prime is 198412429. The next prime is 198412447. The reversal of 198412445 is 544214891.

It is not a de Polignac number, because 198412445 - 2⁴ = 198412429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198412399 and 198412408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198412447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257294 + ... + 258063.

It is an arithmetic number, because the mean of its divisors is an integer number (18552888).

Almost surely, 2^198412445 is an apocalyptic number.

It is an amenable number.

198412445 is a deficient number, since it is larger than the sum of its proper divisors (98433763).

198412445 is a wasteful number, since it uses less digits than its factorization.

198412445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515380.

The product of its digits is 46080, while the sum is 38.

The square root of 198412445 is about 14085.8952502140. The cubic root of 198412445 is about 583.2520890026.

The spelling of 198412445 in words is "one hundred ninety-eight million, four hundred twelve thousand, four hundred forty-five".