198446413 has 6 divisors (see below), whose sum is σ = 218127182. Its totient is φ = 180405720.

The previous prime is 198446399. The next prime is 198446459. The reversal of 198446413 is 314644891.

198446413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 125395204 + 73051209 = 11198^2 + 8547^2 .

It is not a de Polignac number, because 198446413 - 2²¹ = 196349261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198446483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 819906 + ... + 820147.

Almost surely, 2^198446413 is an apocalyptic number.

It is an amenable number.

198446413 is a deficient number, since it is larger than the sum of its proper divisors (19680769).

198446413 is a wasteful number, since it uses less digits than its factorization.

198446413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1640075 (or 1640064 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 198446413 is about 14087.1009437712. The cubic root of 198446413 is about 583.2853711496.

The spelling of 198446413 in words is "one hundred ninety-eight million, four hundred forty-six thousand, four hundred thirteen".