198884412 has 36 divisors (see below), whose sum is σ = 509629120. Its totient is φ = 65385792.

The previous prime is 198884393. The next prime is 198884443. The reversal of 198884412 is 214488891.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35212 + ... + 40467.

Almost surely, 2^198884412 is an apocalyptic number.

198884412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198884412 is an abundant number, since it is smaller than the sum of its proper divisors (310744708).

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

198884412 is a wasteful number, since it uses less digits than its factorization.

198884412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75762 (or 75757 counting only the distinct ones).

The product of its digits is 147456, while the sum is 45.

The square root of 198884412 is about 14102.6384765405. The cubic root of 198884412 is about 583.7141866279.

The spelling of 198884412 in words is "one hundred ninety-eight million, eight hundred eighty-four thousand, four hundred twelve".